C Language
#include<stdio.h>
#include<conio.h>
void main( )
{
int n, i = 1;
clrscr( );
printf("Enter n = ");
scanf("%d",&n);
while(i<=n) {
printf("%d\n",i);
i++;
}
getch( );
}
/*OUTPUT*/
Enter n = 5
1
2
3
4
5