#include<bits/stdc++.h>
using namespace std;
int a[105][105];
int r[105][3];
int main()
{
    int n;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
    	for(int j=1;j<=i;j++)
    	{
    		cin>>a[i][j];
		}
	}
	for(int i=n-1;i>=1;i--) 
	{
		for(int j=1;j<=i;j++)
		{
			if(a[i+1][j]>=a[i+1][j+1])
			{
				a[i][j]+=a[i+1][j];
			}
			else
			{
				a[i][j]+=a[i+1][j+1];
			}
		}
	}
	r[1][1]=1;
	r[1][2]=1;
	int k=1;
	int i=1;
	int j=1;
	while(i<n)
	{
		k++;
		if(a[i+1][j]>a[i+1][j+1])
		{
			r[k][1]=i+1;
			r[k][2]=j;
			i++;
		}
		else
		{
			r[k][1]=i+1;
			r[k][2]=j+1;
			i++;
			j++; 
		}
	}
	for(int i=k;i>=1;i--)
	{
		cout<<r[i][1]<<","<<r[i][2];
		if(i!=1)
		{
			cout<<"->";
		}
	}
	cout<<endl<<a[1][1];
	return 0;
}
/**************************************************************
	Problem: 1410
	User: chenkexin
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2116 kb
****************************************************************/