#include<stdio.h>
int main()
{
    int yearsofservice;
    scanf("%d", &yearsofservice);
    if(years < 1)
    {
        printf("Invalid Input");
    }
    else if(yearsofservice >=1 && yearsofservice <=5)
    {
        printf("5%% \n");
    }
    else if(yearsofservice>=6 && yearsofservice <=10)
    {
        printf("10%% \n");
    }
    else
    {
        printf("no bonus");
    }
    return 0;
}