#include <stdio.h> // scanf, printf
#include <stdlib.h> // qsort
#define SZ 3
int mycmp(void const *left, void const *right)
{
    int vl = *(int const *)left;
    int vr = *(int const *)right;
    int ret = vr - vl;
    if (ret < 0) return -1;
    if (ret > 0) return 1;
    return ret;
}
int main()
{
    int data[SZ];
    int i;    
    for (i = 0; i != SZ; scanf("%d", &data[i++]));
    qsort(data, SZ, sizeof(int), mycmp);
    printf("after sort: \n");
    for (i = 0; i != SZ; printf("%d\n", data[i++]));
    return 0;
}