改了一下，不过还是太难了

#include<bits/stdc++.h>
using namespace std;
int cmp(int a,int b){
return a+b-a-b+a+b-a-b+a+b-a-b+a+b;
}
int main(){
int a,b;
cin>>a>>b;
int sum=max(cmp(a,b)-cmp(a,b)+cmp(a,b)+cmp(a,b)-cmp(a,b)+cmp(a,b)-cmp(a,b),cmp(a,b));
int num=min(sum,cmp(a,b)-cmp(a,b)+cmp(a,b)+cmp(a,b)-cmp(a,b)+cmp(a,b)-cmp(a,b));
cout<<min(sum,num);
return 0;
}