diff --git a/generate_test.py b/generate_test.py
index 49747224a..a0701db34 100755
--- a/generate_test.py
+++ b/generate_test.py
@@ -196,6 +196,13 @@ def test_call_from_outside(self):
             chdir(str(cwd))
 
 
+class TestAllowRE(unittest.TestCase):
+    def test_allow_re(self):
+        with create_test_dir('allow_re') as test_dir:
+            proc = run(
+                ['./generate.py', str(Path(test_dir) / 'allow_re/info.toml'), '--test'])
+            self.assertEqual(proc.returncode, 0)
+
 class TestAllowTLE(unittest.TestCase):
     def test_allow_tle(self):
         with create_test_dir('allow_tle') as test_dir:
diff --git a/problem.py b/problem.py
index 358856f3f..80347a003 100644
--- a/problem.py
+++ b/problem.py
@@ -395,17 +395,22 @@ def judge(self, src: Path, config: dict):
                 logging_result(result, start, end,
                                '{} : {}'.format(case, checker_output.decode('utf-8')))
 
+        allow_status = set()
+        allow_status.add('AC')
+        if config.get('wrong', False):
+            allow_status.update(['WA', 'RE', 'TLE'])
+        if config.get('allow_tle', False):
+            allow_status.add('TLE')
+        if config.get('allow_re', False):
+            allow_status.add('RE')
+        
+        if len(results - allow_status) != 0:
+            logger.error('unexpected status was appeared: {} (allowed {})'.format(results, allow_status))
+
         if config.get('wrong', False):
             if results == {'AC'}:
                 logger.error('wrong solution got accept: {}'.format(src))
                 exit(1)
-        else:
-            if 'WA' in results or 'RE' in results:
-                logger.error('correct solution got wa/re: {}'.format(src))
-                exit(1)
-            if not config.get('allow_tle', False) and 'TLE' in results:
-                logger.error('fast solution got tle: {}'.format(src))
-                exit(1)
 
     def calc_hashes(self) -> MutableMapping[str, str]:
         hashes: MutableMapping[str, str] = dict()
diff --git a/test/allow_re/checker.cpp b/test/allow_re/checker.cpp
new file mode 100644
index 000000000..6a66d5330
--- /dev/null
+++ b/test/allow_re/checker.cpp
@@ -0,0 +1,62 @@
+// https://github.com/MikeMirzayanov/testlib/blob/master/checkers/wcmp.cpp
+
+// The MIT License (MIT)
+
+// Copyright (c) 2015 Mike Mirzayanov
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include "testlib.h"
+
+using namespace std;
+
+int main(int argc, char * argv[])
+{
+    setName("compare sequences of tokens");
+    registerTestlibCmd(argc, argv);
+
+    int n = 0;
+    string j, p;
+
+    while (!ans.seekEof() && !ouf.seekEof()) 
+    {
+        n++;
+
+        ans.readWordTo(j);
+        ouf.readWordTo(p);
+        
+        if (j != p)
+            quitf(_wa, "%d%s words differ - expected: '%s', found: '%s'", n, englishEnding(n).c_str(), compress(j).c_str(), compress(p).c_str());
+    }
+
+    if (ans.seekEof() && ouf.seekEof())
+    {
+        if (n == 1)
+            quitf(_ok, "\"%s\"", compress(j).c_str());
+        else
+            quitf(_ok, "%d tokens", n);
+    }
+    else
+    {
+        if (ans.seekEof())
+            quitf(_wa, "Participant output contains extra tokens");
+        else
+            quitf(_wa, "Unexpected EOF in the participants output");
+    }
+}
diff --git a/test/allow_re/gen/example_00.in b/test/allow_re/gen/example_00.in
new file mode 100644
index 000000000..fbba5e53e
--- /dev/null
+++ b/test/allow_re/gen/example_00.in
@@ -0,0 +1 @@
+1234 5678
diff --git a/test/allow_re/gen/example_01.in b/test/allow_re/gen/example_01.in
new file mode 100644
index 000000000..caf89741f
--- /dev/null
+++ b/test/allow_re/gen/example_01.in
@@ -0,0 +1 @@
+1000000000 1000000000
diff --git a/test/allow_re/hash.json b/test/allow_re/hash.json
new file mode 100644
index 000000000..ffb838113
--- /dev/null
+++ b/test/allow_re/hash.json
@@ -0,0 +1,6 @@
+{
+  "example_00.in": "346a847f5875beb74d494de0680a81fc2ff840b12f79de30dc7ef3a798d23c28",
+  "example_00.out": "d6e0da7b83d84fac4d6a6bd11ad0b0e6ea72351748b4f6a277b9762d9d0eb159",
+  "example_01.in": "0073cf03577a737756752129cc3abcb9f5a4069c705321ee2115574cc31c59f9",
+  "example_01.out": "6f2264250160ee91b20af64f30128e3787fcf641f1c504f7ac752597e7d2cc09"
+}
\ No newline at end of file
diff --git a/test/allow_re/info.toml b/test/allow_re/info.toml
new file mode 100644
index 000000000..b54be325a
--- /dev/null
+++ b/test/allow_re/info.toml
@@ -0,0 +1,10 @@
+title = 'Simple AplusB'
+timelimit = 2.0
+
+[[tests]]
+    name = "example.in"
+    number = 2
+
+[[solutions]]
+    name = "naive.cpp"
+    allow_re = true
\ No newline at end of file
diff --git a/test/allow_re/sol/correct.cpp b/test/allow_re/sol/correct.cpp
new file mode 100644
index 000000000..897b424f1
--- /dev/null
+++ b/test/allow_re/sol/correct.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+using uint = unsigned int;
+using ll = long long;
+using ull = unsigned long long;
+constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }
+template <class T> using V = vector<T>;
+template <class T> using VV = V<V<T>>;
+
+int main() {
+
+    int a, b;
+    scanf("%d %d", &a, &b);
+    printf("%d\n", a + b);
+    return 0;
+}
diff --git a/test/allow_re/sol/naive.cpp b/test/allow_re/sol/naive.cpp
new file mode 100644
index 000000000..cfc2230de
--- /dev/null
+++ b/test/allow_re/sol/naive.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+#include <vector>
+#include <cassert>
+
+using namespace std;
+using uint = unsigned int;
+using ll = long long;
+using ull = unsigned long long;
+constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); }
+template <class T> using V = vector<T>;
+template <class T> using VV = V<V<T>>;
+
+int main() {
+    int a, b;
+    scanf("%d %d", &a, &b);
+    assert(a <= 1000 && b <= 1000);
+    printf("%d\n", a + b);
+    return 0;
+}
diff --git a/test/allow_re/task.md b/test/allow_re/task.md
new file mode 100644
index 000000000..366165f4e
--- /dev/null
+++ b/test/allow_re/task.md
@@ -0,0 +1,25 @@
+## @{keyword.statement}
+整数 $a, b$ が与えられます。 $a + b$ を出力してください。
+
+## @{keyword.constraints}
+
+- $0 \leq a, b \leq 10^9$
+
+
+## @{keyword.input}
+
+```
+$A$ $B$
+```
+
+## @{keyword.output}
+
+```
+$A + B$
+```
+
+## @{keyword.sample}
+
+@{example.example_00}
+
+@{example.example_01}
diff --git a/test/allow_re/verifier.cpp b/test/allow_re/verifier.cpp
new file mode 100644
index 000000000..09e8cb5e4
--- /dev/null
+++ b/test/allow_re/verifier.cpp
@@ -0,0 +1,12 @@
+#include "testlib.h"
+
+int main() {
+    registerValidation();
+
+    inf.readInt(0, 1'000'000'000); // a
+    inf.readSpace();
+    inf.readInt(0, 1'000'000'000); // b
+    inf.readChar('\n');
+    inf.readEof();
+    return 0;
+}