#include<stdio.h>
int main() {
    int n,d;
    int routes[100];
    int i,found = 0;
    scanf("%d" &n);
    if(n < 1 || n > 100) {
        printf("Invalid input");
        return 0;
    }
    for(i=0;i<n;i++) {
        scanf("%d",&routes[i]);
        if(routes[i] < 1) {
            printf("Invalid input");
            return 0;
        }
    }
    if(d < 1) {
        printf("Invalid input");
        return 0;
    }
    for(i = 0; i < n; i++) {
        if(routes[i] == d) {
            found = 1;
            continue;
        }
        printf("%d",routes[i]);
    }
    if(!found) {
        printf("Route not found");
    }
    return 0;
}