A program to print/display 1 to 10 natural numbers.

first with while loop
//A program to print/display 1 to 10 natural numbers.
#include<stdio.h>
#include<conio.h>
void main()
{
int k=1;
while(k<=10)
   {
      printf("%d,",k);
      k++;
   }
getch();
}

now with for loop

//A program to print/display 1 to 10 natural numbers.
#include<stdio.h>
#include<conio.h>
void main()
{
int k;
for(k=1;k<=10;k++)
   {
      printf("%d,",k);
   }
getch();
}

now using do..while loop

//A program to print/display 1 to 10 natural numbers.
#include<stdio.h>
#include<conio.h>
void main()
{
int k=1;
do
  {
       printf("%d,",k);
       k++;

   }
   while(k<=10);
getch();
}