# You are provided with 3 numbers : input1, input2 and input3.

You are provided with 3 numbers : input1, input2 and input3.

Each of these are four digit numbers within the range >=1000 and <=9999.
i.e.
1000 <= input1 <= 9999
1000 <= input2 <= 9999
1000 <= input3 <= 9999
You are expected to find the Key using the below formula –

Key = (Hundreds digit of input1 x Tens digit of input2) – (Largest digit of input3)
For e..g. if input1 = 3521, input2=2452, input3=1352, then Key = (5 x 5) – 5 = 20
Assuming that the 3 numbers are passed to the given function, Complete the function to find and return the Key. Full java code​

```package com.company;
import java.util.Scanner;
import java.util.Arrays;

public class Main {
public static void main(String[] args) {
int key1 =0;
int key2 =0;
int key33 = 0;
int KEY;
int[] key3 = new int[4];

Scanner girdi = new Scanner(System.in);
System.out.println("Please write 1000 <= input1 <= 9999 ");
int input1 = girdi.nextInt;
System.out.println("Please write 1000 <= input2 <= 9999 ");
int input2 = girdi.nextInt;
System.out.println("Please write 1000 <= input3 <= 9999 ");
int input3 = girdi.nextInt;

while(input1 >= 1000) {
input1 = input1 - 1000;
input1 = input1;
}
while(input1 >= 100) {
input1 = input1 - 100;
key1 = key1 + 1;
}
while(input2 >= 100) {
input2 = input2 - 100;
input2 = input2;
}
while(input2 >= 10) {
input2 = input2 - 10;
key2 = key2 + 1;
}

key3[0]=input3/1000;
input3=input3-(1000*key3[0]);

key3[1]=input3/100;
input3=input3-(100*key3[1]);

key3[2]=input3/10;
input3=input3-(10*key3[2]);

key3[3]=input3;

key33 = Arrays.stream(key3).max.getAsInt;

KEY = (key1 * key2) - key33;

System.out.println("Hundreds digit of input1 = " + key1);
System.out.println("Tens digit of input2 = " + key2);
System.out.println("Largest digit of input3 = " + key33);
System.out.println("KEY = " + KEY);

}
}```