#include<bits/stdc++.h>
#define ull unsigned long long
using namespace std;
signed main(){
	ull k=64;
	long long k2=64;
	int k3=64;
    __int128 a=1ull<<k;
    __int128 b=1ll<<k2;
    __int128 c=1<<k3;
    __int128 d=1ull<<64ull;
    __int128 e=1ll<<64ll;
    __int128 f=1<<64;
    cout<<(ull)a-2<<" "<<(ull)b-2<<" "<<(ull)c-2<<" "<<(ull)d-2<<" "<<(ull)e-2<<" "<<(ull)f-2;
    return 0;
}

正确输出应该是6个18446744095507371614（$2^{64}-2$）可我的输出前3个是18446744095507371615，后3个是18446744095507371614，为啥？