/in/foo.cc: In function 'int main()':
/in/foo.cc:6:18: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[25]' [-Wformat=]
     scanf("%s",&a);
                  ^
/in/foo.cc:16:14: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if((s==10)&&(a[12]=='X')||(s==a[12]-48))
       ~~~~~~~^~~~~~~~~~~~~~