#include <stdio.h>

void swap(int *a, int *b) {
    int temp = *a;
    *a = *b;
    *b = temp;
}

void sort(int *x, int *y) {
    if (*x < *y) {
        swap(x, y);
    }
}

int main() {
    int x, y;
	x=6;
	y=5;

    sort(&x, &y);

    printf("%d,%d\n", x, y);

    return 0;
}