#include <stdio.h>

int main() {
    int answer;
    int n;
    
    scanf ("%d\n", &answer);

    while(1){
        int M; 
        scanf("%d", &M);
        if(answer == M){
            printf("RIGHT\n");
            return 0;
        }
        else if(answer > M){
            printf("UP\n");
        }
        else if(answer < M){
            printf("DOWN\n");
        }
    }
    return 0;
}