import java.util.Scanner;

class Exam1Review {

	static double meanAverage(int a, int b, int c) {
		int sum = a + b + c;
		double avg = sum / 3.0;
		return avg;
	}

	static int modulus(int num1, int num2){
		return (num1 % num2);
	}

	static char charAt(String str, int position){
		if(position < str.length() && position >= 0){
			char a = str.charAt(position);
			return a;
		}
		else {
			return '\0';
		}
	}

	static boolean areEqual(String str, String str1) {
		boolean result = str.equals(str1);
		return result;
	}

	public static void main(String[] args) {

		Scanner kb = new Scanner(System.in);
		System.out.println("Enter 3 integers");
		int v1 = kb.nextInt();
		int v2 = kb.nextInt();
		int v3 = kb.nextInt();
		double mean = meanAverage(v1, v2, v3);
		System.out.println("mean: " + mean);

		System.out.println("Enter 2 integers");
		v1 = kb.nextInt();
		v2= kb.nextInt();
		int mod = modulus(v1, v2);
		System.out.println("mod: " + mod);

		System.out.println("Enter a string and an integer");
		String str = kb.next();
		v1 = kb.nextInt();
		char c = charAt(str, v1);
		System.out.println("char: " + c);

		System.out.println("Enter 2 strings");
		String str1 = kb.next();
		String str2 = kb.next();
		boolean same = areEqual(str1, str2);
		System.out.println("same: " + same);
	}

}