#include <stdio.h>
#include <stdlib.h>

long switch_eg
(long x, long y, long z) {
    long w = 1;
    switch(x) {
    case 1:
	w = y*z;
	break;
    case 2:
	w = y/z;
	/* Fall through */
    case 3:
	w += z;
	break;
    case 5:
    case 6:
	w -= z;
	break;
    default:
	w = 2;
    }
    return w;
}

long sparse_switch_eg
(long x, long y, long z) {
    long w = 1;
    switch(x) {
    case 100:
	w = y*z;
	break;
    case 200:
	w = y/z;
	/* Fall through */
    case 300:
	w += z;
	break;
    case 500:
    case 600:
	w -= z;
	break;
    default:
	w = 2;
    }
    return w;
}

int main(int argc, char *argv[]) {
    long x = atoi(argv[1]);
    long y = atoi(argv[2]);
    long z = atoi(argv[3]);
    long w = switch_eg(x, y, z);
    printf("x = %ld, y = %ld, z = %ld --> %ld\n",
	   x, y, z, w);
    exit(0);
}