/in/foo.c: In function 'mian':
/in/foo.c:4:6: error: 'cout' undeclared (first use in this function)
      cout<<"@@@@@"end1;
      ^~~~
/in/foo.c:4:6: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:4:19: error: expected ';' before 'end1'
      cout<<"@@@@@"end1;
                   ^~~~
/in/foo.c:5:19: error: expected ';' before 'end1'
      cout<<"@   @"end1;
                   ^~~~
/in/foo.c:6:19: error: expected ';' before 'end1'
      cout<<"@   @"end1;
                   ^~~~
/in/foo.c:7:19: error: expected ';' before 'end1'
      cout<<"@   @"end1;
                   ^~~~
/in/foo.c:8:19: error: expected ';' before 'end1'
      cout<<"@@@@@"end1;
                   ^~~~
/in/foo.c:10:2: error: expected ';' before '}' token
  }
  ^