C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	for(int i=1;i<=b;i++){
	if(a==1)cout<<"******"<<endl;
	if(a==2)cout<<"######"<<endl;
	if(a==3)cout<<"~~~~~~"<<endl;
	}
	return 0;
}

Python :

# coding=utf-8
n = int(input())
m = int(input())
i = 1
while(i <= m):
    if(n==1):
        print("******")
    if(n==2):
        print("######")
    if(n==3):
        print("~~~~~~")
    i += 1