#include<stdio.h>
int main()
{
    int n,a;
    scanf("%d",&n);
    if(n>=0)
    {
        printf("balanced\n");
    }
    else if(a<=1){
        printf("the number is zero or less :");
    }
    else
    {
        printf("uncharged\n);
    }
    return 0;
}