#include <bits/stdc++.h>

using namespace std;
const int INF = 0x3f3f3f3f;
typedef long long LL;
int a[] = {4, 1, 9, 5, 1, 7, 2};

int main() {
    int len = sizeof(a) / 4;
    for (int i = 0; i < len - 1; i++) {
        int mi = i;
        for (int j = i + 1; j < len; j++)
            if (a[j] < a[mi]) mi = j;
        swap(a[i], a[mi]);
    }
    for (int i = 0; i < len; i++) printf("%d ", a[i]);
    return 0;
}