#include <stdio.h>

void DisplayNaturalNumber(int lowerLimit, int upperLimit);

int main()
{
    int limit;

    printf("Print all natural numbers from 1 to : ");
    scanf("%d", &limit);

    printf("All natural numbers from 1 to %d are: ", limit);
    DisplayNaturalNumber(1, limit);

    return 0;
}

void DisplayNaturalNumber(int lowerLimit, int upperLimit)
{
    if(lowerLimit > upperLimit)
        return;

    printf("%d, ", lowerLimit);

    DisplayNaturalNumber(lowerLimit+1, upperLimit);
}



1.	Function initially sets lowerLimit as 1.
2.	Function checks if 1 is more than 5 which is false so it then adds 1 to the lowerLimit making it 2.
3.	Function recursively checks if 2 is more than 5 which is false so it then adds 1 to the lowerLimit making it 3.
4.	Function recursively  checks if 3 is more than 5 which is false so it then adds 1 to the lowerLimit making it 4.
5.	Function recursively  checks if 4 is more than 5 which is false so it then adds 1 to the lowerLimit making it 5.
6.	Function gets called and sent to the if loop where it looks for the value in lowerLimit.