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/* hw8-2.c */
#include <stdio.h>
#include <stdlib.h>
#include "hw8-2.h"

int main()
{
    static int mp[131][131][131];

    int q = 1000;
    while(q--)
    {
        int opt;
        scanf("%d",&opt);
        if( opt == 1 )
        {
            char str[4] = {};
            int val;

            scanf("%s %d",str,&val);

            int* pos = &(mp[str[0]][str[1]][str[2]]);
            modify(pos,val);
        }
        else
        {
            char a[4],b[4];
            scanf("%s %s",a,b);

            int check = query(&mp,a,b);

            printf( ( check == 1 ? "YES\n" : "NO\n" )  );
        }
    }

    return 0;
}