#include <stdio.h>

int main (int argc, const char * argv[]) {
    // insert code here...
	int valA,valB,answer;
	int ops;
	
	valA = 100;
	valB = 50;
	
	ops = 3;
	
	switch(ops){
		case 0:
			answer = valA + valB;
		case 1:
			answer = valA - valB;
		case 2:
			answer = valA * valB;
		case 3:
			answer = valA / valB;
	}

	printf("answer is %d", answer); 
	
    return 0;
}