View Compilation Error

0_0_30849991_536.cpp:37:6: error: missing terminating " character
      printf("Case #%lld: %lld %lld 
      ^
0_0_30849991_536.cpp:38:2: error: stray '\' in program
  \n",case1++,fengzi/__gcd(fengzi,fengmu),fengmu/__gcd(fengzi,fengmu));
  ^
0_0_30849991_536.cpp:38:2: error: missing terminating " character
0_0_30849991_536.cpp: In function 'int main()':
0_0_30849991_536.cpp:39:2: error: expected ')' before '}' token
  }
  ^