View Compilation Error

0_0_31342299_19445.cpp: In function 'int mul(int, int)':
0_0_31342299_19445.cpp:26:44: error: expected primary-expression at end of input
 int mul(int a, int b) { return 1ll * a * b % 
                                            ^
0_0_31342299_19445.cpp:26:44: error: expected ';' at end of input
0_0_31342299_19445.cpp:26:44: error: expected '}' at end of input