Correct Change

import java.util.Scanner;

public class Main {

    public static boolean doStuff(int nickels, int pennies, int sum){

        nickels*=5;
        int allSum = nickels+pennies;
        boolean answer = false;

        //System.out.println(allSum);
        if(allSum==sum){
            answer = true;
        }
        else if(allSum<sum) {
            answer = false;
        }
        else if(allSum>sum){
//that's where all important things happens!

            answer = false;





//face THE END
        }
        return answer;
    }

    public static void main(String[] args) {


        //int n = in.nextInt();
        int n = 1;
        for(int i=0; i<n; i++){
            Scanner in = new Scanner(System.in);
            int a = in.nextInt();
            int b= in.nextInt();
            int c = in.nextInt();
            System.out.println( doStuff(a, b, c) );

            //in.close();
        }
    }
}