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#include <bits/stdc++.h>

using namespace std;

ifstream f("bac.txt");

void Read(int& n, int& m, int a[100], int b[100])
{
    f >> n >> m;
    for(int i = 0; i < n; ++i)
        f >> a[i];
    for(int j = 0; j < m; ++j)
        f >> b[j];
}

void Ord(int n, int m, int a[100], int b[100])
{
    int i1 = 0, i2 = 0, x;

    cout << (x = (a[i1] < b[i2] ? a[i1++] : b[i2++])) << " ";
    while(i1 < n && i2 < m)
    {
        if(a[i1] < b[i2])
        {
            if(x & 1)
                cout << (x = a[i1]) << " ";
            ++i1;
        }
        else
        {
            if(!(x & 1))
                cout << (x = b[i2]) << " ";
            ++i2;
        }
    }

    if((x & 1) && i1 < n)
        cout << a[i1];
    if(!(x & 1) && i2 < m)
        cout << b[i2];
}

int main()
{
    int n, m, a[100], b[100];
    Read(n, m, a, b);
    Ord(n, m, a, b);
    return 0;
}