```cpp
#include<bits/stdc++.h>
using namespace std;
int a[16];
void f(int x)
{
for(int i=15;i>=0;i--)
{
if(x>=a[i])
{
x-=a[i];
if(i==0) printf("2(0)");
else if(i==1) printf("2");
else
{
printf("2(");
f(i);
printf(")");
}
if(x!=0) printf("+");
}
}
}
int main()
{
a[0]=1;
for(int i=1;i<=15;i++)
a[i]=a[i-1]*2;
int n;
cin >> n;
f(n);
return 0;
}
```
by soloer @ 2021-07-26 14:37:12