21번

#include<iostream>
#include<vector>
using namespace std;


int main() {
	int wincheck = 0;
	int arrsum = 0;
	int arr2sum = 0;
	vector<int> arr(10);
	vector<int> arr2(10);

	for (int i = 0; i < 2; i++)
	{
		for (int j = 0; j < 10; j++)
		{
			if (i == 0)
			{
				cin >> arr[j];
			}
			else if (i == 1)
			{
				cin >> arr2[j];
			}
		}
	}
	for (int i = 0; i < 10; i++)
	{
		if (arr[i] > arr2[i])
		{
			arrsum = arrsum + 3;
			wincheck = i;
		}
		else if (arr[i] < arr2[i])
		{
			arr2sum = arr2sum + 3;
			wincheck = i;
		}
		else if (arr[i] == arr2[i])
		{
			arrsum++;
			arr2sum++;
		}
	}
	if (arrsum > arr2sum)
	{
		cout << arrsum << " " << arr2sum << endl;
		cout << 'A';
	}
	else if (arrsum < arr2sum)
	{
		cout << arrsum << " " << arr2sum << endl;
		cout << 'B';
	}
	else if (arrsum == arr2sum)
	{
		if (arr[wincheck] > arr2[wincheck])
		{
			cout << arrsum << " " << arr2sum << endl;
			cout << 'A';
		}
		else if(arr[wincheck] < arr2[wincheck])
		{
			cout << arrsum << " " << arr2sum << endl;
			cout << 'B';
		}
		else if(wincheck==0)
		{
			cout << arrsum << " " << arr2sum << endl;
			cout << 'D';
		}
	}


}