#include<iostream>
using namespace std;

void pattern1();
void pattern2();
void pattern3();
void pattern4();

int main()
{
    int ch;
    cout<<"1. Pattern 1\n2. Pattern 2\n3. Pattern 3\n4. Pattern 4\n5. Exit\n";
    cout<<"Enter ur choice: ";
    cin>>ch;

    switch(ch)
    {
        case 1:
            pattern1();
            break;
        case 2:
            pattern2();
            break;
        case 3:
            pattern3();
            break;
        case 4:
            pattern4();
            break;
        case 5:
            cout<<"GOOD BYE..";
            break;
    }
}
void pattern1()
{
    int i, j;
    for(i=0;i<5;i++)
    {
        for(j=0; j<5; j++)
        {
            cout<<"*";
        }
        cout<<"\n";
    }
}
void pattern2()
{
    int i, j;
    for(i=0;i<5;i++)
    {
        for(j=0; j<=i; j++)
        {
            cout<<"*";
        }
        cout<<"\n";
    }
}
void pattern3()
{
    int i, j;
    for(i=0;i<5;i++)
    {
        for(j=0; j<=i; j++)
        {
            cout<<i+1;
        }
        cout<<"\n";
    }
}
void pattern4()
{
    int i, j, count=1;
    for(i=0;i<5;i++)
    {
        for(j=0; j<=i; j++)
        {
            cout<< count << " ";
            count++;
        }
        cout<<"\n";
    }
}