#include <iostream.h>
#include <stdio.h>
#include <strings.h>

int main()
{
  int count=0;

  while (count < 20)
    {
      printf("%d\n", count);
      count++;
      
    }

  count=0;
  printf("\n");

  do
    {
      printf("%d\n", count);
      count++;
    }
      while(count < 20);

  printf("\n");

  for (int i=0; i < 20; i++)
    {
      printf("%d\n", i);
    }



  char name[10];

  strcpy(name, "\0");
  
  while(strcmp(name, "Carman"))
    {
      cout << "Enter a name: ";
      cin >> name;
    }

  

}