/in/foo.cc:23:37: error: stray '\346' in program
                 ans1=a[i];ans2=a[j];案
                                     ^
/in/foo.cc:23:38: error: stray '\241' in program
                 ans1=a[i];ans2=a[j];案
                                      ^
/in/foo.cc:23:39: error: stray '\210' in program
                 ans1=a[i];ans2=a[j];案
                                       ^