minuman

#include <bits/stdc++.h>
#include<string>
using namespace std;
void swap(int *xp, int *yp)
{
	int temp = *xp;
	*xp = *yp;
	*yp = temp;
}
void swaps(string *xp, string *yp)
{
	string temp = *xp;
	*xp = *yp;
	*yp = temp;
}
void bubbleSort(int arr[],string x[], int n)
{
int i, j;
bool swapped;
for (i = 0; i < n-1; i++)
{
	swapped = false;
	for (j = 0; j < n-i-1; j++)
	{
		if (arr[j] > arr[j+1])
		{
		swap(&arr[j], &arr[j+1]);
		swaps(&x[j], &x[j+1]);
		swapped = true;
		}
	}

	if (swapped == false)
		break;
}
}
int main()
{
	string x[3003];
	int arr[1002];
	int n,o ;
	cin >> n;
	for(int i=0;i<n;i++)
	{
		cin >> arr[i]>>x[i];
	}
	o=0;
	bubbleSort(arr, x, n);
	for (int i=0;i<n-1;i++){
		for (int j=i+1;j<n;j++){
			for(int k=j+1;k<n;k++){
				string z="";
				z=x[i];
				if(z.find("A")<6 and z.find("B")<6 and z.find("C")<6){
					o=arr[i];
					break;
				}
				z=x[j];
				if(z.find("A")<6 and z.find("B")<6 and z.find("C")<6){
					o=arr[j];
					break;
				}
				z=x[k];
				if(z.find("A")<6 and z.find("B")<6 and z.find("C")<6){
					o=arr[k];
					break;
				}
				z=x[k]+x[j];
				if(z.find("A")<6 and z.find("B")<6 and z.find("C")<6){
					o=arr[j]+arr[k];
					break;
				}
				z=x[i]+x[j];
				if(z.find("A")<6 and z.find("B")<6 and z.find("C")<6){
					o=arr[i]+arr[j];
					break;
				}
				z=x[i]+x[j]+x[k];
				if(z.find("A")<6 and z.find("B")<6 and z.find("C")<6){
					o=arr[i]+arr[j]+arr[k];
					break;
				}
			}
			if(o>0){
				break;
			}

		}
		if(o>0){
			break;
		}
	}
	if (o>0){
		cout << o <<endl;
	}else {
		cout <<"-1"<<endl;
	}
	return 0;
}