Bhuvnesh Jain likecs

## gcdsum.cpp
#include <bits/stdc++.h>
using namespace std;

typedef long long LL;

const int MAX  = 5e5 + 5;
const int MAX2 = 1e6 + 6;
const int MOD  = 1e9 + 7;

int phi[MAX];

## huge_sum.cpp
#include <bits/stdc++.h>
using namespace std;

typedef long long LL;

const int MAX = 10000001;
const int MOD = 1e9 + 7;

#define inchar          getchar_unlocked
#define outchar(x)      putchar_unlocked(x)
	#include <bits/stdc++.h>
	using namespace std;

	typedef long long LL;

	const int MAX = 5e5 + 5;
	const int MAX2 = 1e6 + 6;
	const int MOD = 1e9 + 7;

	int phi[MAX];