#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
int a[6], ans = 0;
for (int i = 0; i < 6; i++){
cin >> a[i];
ans += a[i];
}
bool flag = false;
for (int i = 0; i < 6; i++){
for (int j = 0; j < 6; j++){
for (int k = 0; k < 6; k++){
if(i != j && i != k && j != k){
if((a[i] + a[j] + a[k]) * 2 == ans)
flag = true;
}
}
}
}
if(flag)
cout << "YES" << endl;
else
cout << "NO" << endl;
}
CodeForces - 890A - ACM ICPC【水题】
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转载自blog.csdn.net/qq_37602930/article/details/81150540
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