START01 codechef Solution - Correct, Optimal and Working

/*
 *  Author: Arpit Bhayani
 *  https://arpitbhayani.me
 */
#include <stdio.h>

#define ll long long

#define MIN(a, b) a < b ? a : b

int main(int argc, char *argv[]) {
    ll int n;
    scanf("%lld", &n);
    printf("%lld\n", n);
    return 0;
}

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