#include <stdio.h>
void calculate_bonus(int years){
    if (years < 1){
       printf("Invalid Input\n");
    } else if (years >= 1 && years <= 5){
       printf("5%% Bonus\n");
    } else if (years >= 6 && years <= 10){
       printf("10%% Bonus\n");
    } else {
       print("15%% Bonus\n");
    }
}
int main(){
    int years_of_service;
    printf("Enter years of service: ");
    scanf("%d", &years_of_service);
    calculate_bonus(years_of_service);
    return 0;
}