#include <iostream>
using namespace std;

void show(int **s,int i,int j){
	if(i==j) cout<<"A"<<i;
	else{
		cout<<"(";
		show(s,i,s[i][j]);
		show(s,s[i][j]+1,j);
		cout<<")";
	}
}

void answer(int *a,int n){
	int **m = new int *[n];
	for(int i=0;i<n;i++) m[i] = new int[n];
	for(int i=0;i<n;i++) for(int j=0;j<n;j++) m[i][j] = -1;
	int **s = new int *[n];
	for(int i=0;i<n;i++) s[i] = new int[n];
	for(int i=0;i<n;i++) m[i][i] = a[i];	
	for(int l=1;l<n;l++){
		for(int i=0;i<n-l;i++){
			int j = i + l;
			m[i][j] = -1;
			for(int k=i;k<j;k++){
				int p = (m[i][k] + m[k+1][j])*2;
				if(p>m[i][j]) {
					m[i][j] = p;
					s[i][j] = k;
				}
			}
		}
	}
	for(int i=0;i<n;i++) {
		for(int j=0;j<n;j++) cout<<m[i][j]<<"	";
		cout<<endl;
	}
	show(s,0,n-1);
	for(int i=0;i<n;i++) delete s[i],m[i];
	delete m,s;
}