что не так
package com.javarush.task.task14.task1420;
import java.io.BufferedReader;
import java.io.InputStreamReader;
/*
НОД
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
int a = Integer.parseInt(bufferedReader.readLine());
int b = Integer.parseInt(bufferedReader.readLine());
if (a < 1 || b < 1) {
System.out.println("Пшол отсюда");
throw new Exception();
} else {
int maxCof = 1;
int min;
if (a < b) {
min = a;
} else {
min = b;
}
for (int i = 1; i < min; i++) {
if (a % i == 0 && b % i == 0) {
if (i > maxCof) {
maxCof = i;
}
}
}
System.out.println(maxCof);
}
}
}