import java.util.*;
public class Solution {
    public void merge(int A[], int m, int B[], int n) {
        while (m > 0 && n > 0) {
            if (A[m-1] > B[n-1]) {
                A[m+n-1] = A[m-1];
                m--;
            } else {
                A[m+n-1] = B[n-1];
                n--;
            }
        }

        while (n > 0) {
            A[n-1] = B[n-1];
            n--;
        }

    }
}