#include <stdio.h>
#include <stdlib.h>
int gcd (int a, int b) {
printf("El MCD de a = %d y b = %d es ",a,b);
while (a != b) {
if (a > b) {
a = a - b;
} else {
b = b - a;
}
}
printf("%d.\n",a);
}
main (int argc, char **argv) {
gcd(atoi(argv[1]),atoi(argv[2]));
}