/in/foo.cc: In function 'int main()':
/in/foo.cc:13:15: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  if(a[12]!='X'&&(a[12]-'0')==m||a[12]=='X'&&m==10)
     ~~~~~~~~~~^~~~~~~~~~~~~~~~
/in/foo.cc:15:15: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  if(a[12]=='X'&&m!=10||(a[12]-'0')!=m)
     ~~~~~~~~~~^~~~~~~