import java.io.*;
import java.util.*;
public class For {
public void table(int n,int m) {
String ans = new String();
for (int x = 1; x<m; x=x+1) {
for (int y = 1; y<n; y=y+1) {
ans = ans + (y*x);
}
System.out.println(ans);}
}
//factorial written with while loop
public int fact(int n){
int ans = 1;
for(;n > 0; n = n - 1)
ans = ans * n;
return ans;
}
public String Reverse(String s){
String ans = "";
for (int i = s.length();i>0;i=i-1){
ans = ans + s.substring(i-1,i);
}
return ans;
}
}