/in/foo.c: In function 'main':
/in/foo.c:9:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(i=0;i<13;i++)
   ^~~
/in/foo.c:15:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    for(i=1;i<=9;i++)
    ^~~
/in/foo.c:15:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
/in/foo.c:17:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     if(s%11!=10)
     ^~
/in/foo.c:28:10: warning: operation on 'i' may be undefined [-Wsequence-point]
     for(i=i=0;i<12;i++)
         ~^~~~