#include <stdio.h>

void deascend(int *x, int *y, int *z);
void swap(int *a, int *b);

int main(void) {
    int n1, n2, n3;

    printf("n1:"); scanf("%d", &n1);
    printf("n2:"); scanf("%d", &n2);
    printf("n3:"); scanf("%d", &n3);

    deascend(&n1, &n2, &n3);

    printf("%d, %d, %d\n", n1, n2, n3);

    return 0;
}

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

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