C programming, Demonstrate the working of keyword long.

#include <stdio.h>

int main() {

    int a;

    long b;   // equivalent to long int b;

    long long c;  // equivalent to long long int c;

    double e;

    long double f;

    printf("Size of int = %zu bytes \n", sizeof(a));

    printf("Size of long int = %zu bytes\n", sizeof(b));

    printf("Size of long long int = %zu bytes\n", sizeof(c));

    printf("Size of double = %zu bytes\n", sizeof(e));

    printf("Size of long double = %zu bytes\n", sizeof(f));

    return 0;

}