#include <stdio.h>

int main() {
    int years;
    
    //input years of service
    scanf("%d", &years);
    
    //check for invalid input
    if(years<1) {
        printf("Invalid input");
    }
    else if (years>=1&&years<=5) {
        printf("5%%bonus");
}
else if (years>=6&&years<=10) {
    printf("10%%Bonus";)
}
else if (years>10) {
    printf("15%%bonus");
}

return 0;
}