#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;

class stack
{
private:
    int* st;
    int size;
    int index;
    string name;
public:

    stack(string n, int s)
    {
        size = s;
        name = n;
        index = 0;
        st = new int[size];
    }

    bool add(int x)
    {
        if (index != size)
        {
            *(st + index) = x;
            index++;
            return true;
        }
        else { return false; }
    }

    bool pop()
    {
        if (index-1>0)
        {
            *(st + index - 1) = 0;
            index--;
            return true;
        }
        else { return false; }
    }

    int len()
    {
        return index;
    }

    int get()
    {
        return(st[index - 1]);
    }

    string getname() { return name; }
    int getsize() { return size; }
    ~stack()
    {
        delete[] st;
    }
};


int main()
{
    string name1, name2;
    int x, L, size1, size2;
    cin >> name1 >> size1;
    stack Obj1(name1, size1);
    cin >> name2 >> size2;
    stack Obj2(name2, size2);
    bool flag1 = true;
    bool flag2 = true;
    while (flag1 and flag2)
    {
        cin >> x;
        flag1 = Obj1.add(x);
        flag2 = Obj2.add(x);
    }

    cout << setw(15) << left << Obj1.getname();
    cout << Obj1.getsize() << endl;
    cout << setw(15) << left << Obj2.getname();
    cout << Obj2.getsize() << endl;
    cout << setw(15) << left << Obj1.getname()<<Obj2.getname()<<endl;

    cout << setw(15) <<right<< Obj1.get();
    cout << setw(15) <<right<< Obj2.get();

    if (Obj1.len() > Obj2.len())
    {
        while (Obj2.pop())
        {
            Obj1.pop();
            cout << endl;
            cout << setw(15) <<right<< Obj1.get();
            cout << setw(15) <<right<< Obj2.get();
        }
    }
    else
    {
        while (Obj1.pop())
        {
            Obj2.pop();
            cout << endl;
            cout << setw(15) <<right<< Obj1.get();
            cout << setw(15) <<right<< Obj2.get();
        }
    }



    return(0);
}