#include <vector>
#include <algorithm>
using namespace std;
 
int main() {
    int n, m;
    cin >> n >> m;
    
    vector<int> arr(m);
    for (int i = 0; i < m; ++i) {
        cin >> arr[i];
    }
    
    auto it = lower_bound(arr.begin(),  arr.end(),  n);
    arr.insert(it,  n);
    
    for (int i = 0; i < arr.size();  ++i) {
        if (i > 0) cout << " ";
        cout << arr[i];
    }
    
    return 0;
}

/**************************************************************
	Problem: 1161
	User: linzihang
	Language: C++
	Result: Compile Error
****************************************************************/