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public class Main {
static int gcd(int a, int b) {
if (b == 0) {
return a;
}
return gcd(b, a % b);
}
public static void main(String args[]) {
int a = 4, b = 8;
int ans = gcd(a, b);
System.out.print("The GCD of the two numbers is "+ans);
}
}