View Compilation Error

0_0_22974173_17366.cpp:19:53: error: stray '@' in program
             case 2:  if((year%4==0&&year0!=0)||(year@0==0))
                                                     ^
0_0_22974173_17366.cpp: In function 'int main()':
0_0_22974173_17366.cpp:19:37: error: 'year0' was not declared in this scope
             case 2:  if((year%4==0&&year0!=0)||(year@0==0))
                                     ^
0_0_22974173_17366.cpp:19:54: error: expected ')' before numeric constant
             case 2:  if((year%4==0&&year0!=0)||(year@0==0))
                                                      ^
0_0_22974173_17366.cpp:20:27: error: expected ')' before ';' token
                      i+=29;
                           ^