#include <cstdio>


int h, n, tmp, cnt;

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

    cnt = 1;
    for(int i = 0; i < n - 1; i++){
        scanf("%d", &tmp);

        if(tmp > h) cnt++;
    }

    if(cnt == 1) printf("1st\n");
    if(cnt == 2) printf("2nd\n");
    if(cnt == 3) printf("3rd\n");
    if(cnt >= 4) printf("%dth\n", cnt);

    return 0;
}