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--;
}
}
}