// editor2
#include<stdio.h>
int main()
{
    int n[]={1,2,3,4,5,6,7,8,9,10},i;
    int a;
    scanf("%d",&a);
    arr[n];
    for(i=0,i<=a,i++)
    {
        scanf("%d",&arr[i]);
        if (n[]!=arr[i])
            printf("%d",arr[i]);
    }
    return 0;
}