Run id: 95061

Main.cc: In function 'int main()':
Main.cc:7:14: error: 'i' was not declared in this scope
  for(int a=2;i<=30;i++){
              ^
Main.cc:7:10: warning: unused variable 'a' [-Wunused-variable]
  for(int a=2;i<=30;i++){
          ^