// editor3
#include<stdio.h>
int main(){
    int years_of_service = 3;
    double bonus_percentage;
    if(years_of_service => 1 && years_of_service <=5){
        bonus_percentage = 5;
    } else if (years_of_service => 6 && years_of_service <= 10){
        bonus_percentage = 10;
    } else if ( years_of_service < 10){
        bonus_percentage = 15;
    } else {
    printf("Invalid Input");
        
    }
    
    printf("%.0f%%\n",bonus_percentage);
    return 0;
}