/in/foo.cc:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
/in/foo.cc:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:10:13: error: 'i' was not declared in this scope
   if(number[i]=='7')
             ^
/in/foo.cc:12:5: error: 'sum' was not declared in this scope
     sum=two[cnt];
     ^~~
/in/foo.cc:12:13: error: 'cnt' was not declared in this scope
     sum=two[cnt];
             ^~~
/in/foo.cc:15:3: error: 'cnt' was not declared in this scope
   cnt+=1;
   ^~~
/in/foo.cc:18:25: error: 'printf' was not declared in this scope
   printf("%I64d\n",ans-1);
                         ^