#include<iostream.h>

void line_print();
void line_print(char);
void line_print(char,int);

int main()
{
line_print();
cout<<endl;
line_print('*');
cout<<endl;
line_print('$',32);
cout<<endl;
return 0;
}

void line_print()
{
int i=0;
while(i<20)
{
cout<<"_";
i++;
}
}

void line_print(char x)
{
int i=0;
while(i<20)
{
cout<<x;
i++;
}
}

void line_print(char x,int length)
{
int i=0;
while(i<length)
{
cout<<x;
i++;
}
}