View Compilation Error

0_0_33705035_3586.cpp: In function 'int add(int, int)':
0_0_33705035_3586.cpp:42:61: error: expected ':' before ';' token
 int add(int a,int b) {return (a + b) > M ? a + b - M ? a + b;}
                                                             ^
0_0_33705035_3586.cpp:42:61: error: expected primary-expression before ';' token
0_0_33705035_3586.cpp:42:61: error: expected ':' before ';' token
0_0_33705035_3586.cpp:42:61: error: expected primary-expression before ';' token