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#include "alg/monoid/gcd.hpp"
#pragma once
template <typename X>
struct Monoid_Gcd {
using value_type = X;
static X op(X x, X y) { return gcd(x, y); }
static constexpr X unit() { return 0; }
static constexpr bool commute = true;
};
#line 2 "alg/monoid/gcd.hpp"
template <typename X>
struct Monoid_Gcd {
using value_type = X;
static X op(X x, X y) { return gcd(x, y); }
static constexpr X unit() { return 0; }
static constexpr bool commute = true;
};