View Compilation Error

0_0_30139967_9258.cpp: In function 'std::pair<long long int, long long int> Find(long long int, long long int, long long int, long long int)':
0_0_30139967_9258.cpp:72:26: error: expected '}' at end of input
                 b = b % a;
                          ^
0_0_30139967_9258.cpp:72:26: error: expected '}' at end of input
0_0_30139967_9258.cpp:72:26: error: expected '}' at end of input
0_0_30139967_9258.cpp:72:26: error: expected '}' at end of input