#include<bits/stdc++.h>
using namespace std;
long beds[15];
int main()
{
    long N,B,H,W,i,P,j,minimum,tag,MIN;
    while(scanf("%ld%ld%ld%ld",&N,&B,&H,&W)==4)
    {
        tag=0;
        MIN=1000000;
        for(i=1; i<=H; i++)
        {
            scanf("%ld",&P);
            for(j=0; j<W; j++)
            {
                scanf("%ld",&beds[j]);
            }
            sort(beds,beds+W);
            if(beds[W-1]>=N && (N*P)<=B)
            {
                tag=1;
                minimum=N*P;
                minimum=min(minimum,MIN);
                MIN=minimum;
            }
        }
        if(tag)
        {
            printf("%ld\n",minimum);
        }
        else
        {
            printf("stay home\n");
        }
    }
    return 0;
}