Print all the numbers which multiplied by 3 till last limit

// Print all the numbers which multiplied by 3 till last limit

#include<stdio.h>
#include<conio.h>
void main()
{
    int a,l;
    clrscr();

    printf("\n Enter a last limit : ");
    scanf("%d",&l);

    for(a=0;a<=l;a++)
    {
        if(a%3==0)
            printf("\n%d",a);
    }

    getch();
}