View Compilation Error

0_0_36374111_15469.c: In function 'main':
0_0_36374111_15469.c:7:1: error: expected expression before '/' token
 //    for(int i = 0; i < 15; i++){
 ^
0_0_36374111_15469.c:11:23: error: 'num' undeclared (first use in this function)
     while(scanf("%d",&num) != EOF){
                       ^
0_0_36374111_15469.c:11:23: note: each undeclared identifier is reported only once for each function it appears in