You are required to trace the following program where the input provided to the scanf is your student number. You must draw the process tree, identify a potential output and clearly state if the output could be different. int num; scanf("%d", &num); int n1; int pid = -1; for(int i=0; i<2; i++) { if(pid) { n1 = num%10; pid = fork(); num /= 10; } } for(int i=0; i<3; i++) { if(i == 0 && n1%2) { if(!fork()) { printf("X"); return 0; } } printf("%d", num); num /= 10; }