#include <bits/stdc++.h>
using namespace std;
typedef struct item
{
    int coe; //系数
    int ind; //指数
    struct item *next;
} item, *link;
int n, m;
void creatlink(link &head);
void print(link &head);
void linksum(link &head);
int main()
{
    link head;
    creatlink(head);
    linksum(head);
    print(head);
    return 0;
}
void linksum(link &head)
{
    cin >> m;
    for (int i = 0; i < m; i++)
    {
        int xi, zhi;
        scanf("%d,%d", &xi, &zhi);
        link p2 = head, p1 = head->next;
        while (p1 != NULL && p1->ind < zhi)
        {
            p2 = p1;
            p1 = p1->next;
        }
        if (p1 != NULL && p1->ind == zhi)
        {
            p1->coe = p1->coe + xi;
            if (p1->coe == 0)
            {
                p2->next = p1->next;
                delete p1;
            }
        }
        else
        { //cout<<"****"<<endl;
            link q;
            q = new item;
            q->coe = xi, q->ind = zhi;
            q->next = p1;
            p2->next = q;
        }
    }
}
void creatlink(link &head)
{
    head = new item;
    head->next = NULL;
    cin >> n;
    for (int i = 0; i < n; i++)
    {
        int xi, zhi;
        scanf("%d,%d", &xi, &zhi);
        link p1 = head->next, p2 = head;
        while (p1 != NULL && p1->ind < zhi)
        {
            p2 = p1;
            p1 = p1->next;
        }
        link q;
        q = new item;
        q->coe = xi, q->ind = zhi;
        q->next = p1;
        p2->next = q;
    }
}
void print(link &head)
{
    link p = head->next;
    while (p)
    {
        cout << p->coe << "*x^" << p->ind << " ";
        p = p->next;
    }
    cout << endl;
}