Main.cc: In function ‘int main()’:
Main.cc:6:5: error: ‘longlong’ was not declared in this scope
    6 |     longlong int suma = 0, sumb = 0, sum = 0;
      |     ^~~~~~~~
Main.cc:9:9: error: ‘suma’ was not declared in this scope
    9 |         suma = suma + i;
      |         ^~~~
Main.cc:12:9: error: ‘sumb’ was not declared in this scope
   12 |         sumb = sumb + i;
      |         ^~~~
Main.cc:14:5: error: ‘sum’ was not declared in this scope
   14 |     sum = suma * sumb;
      |     ^~~
Main.cc:14:11: error: ‘suma’ was not declared in this scope
   14 |     sum = suma * sumb;
      |           ^~~~
Main.cc:14:18: error: ‘sumb’ was not declared in this scope
   14 |     sum = suma * sumb;
      |                  ^~~~