Sum of Numbers in Ascending/Descending Order with using Recursion in C

#include <stdio.h>
 
int print_sum(int n);
 
void main() {
    printf(" = %d", print_sum(10));
}
 
// 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1
int print_sum(int n) {
    if (n <= 1) {
        printf("%d ", n);
        return 1;
    }
    else {
        printf("%d + ", n);
        return n + print_sum(n-1);
    }
}
 
// 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
int print_sum(int n) {
    int num;
    if (n <= 1) {
        printf("%d ", n);
        return 1;
    }
    else {
        num = print_sum(n-1);
        printf(" + %d", n);
        return n + num;
    }
}