[브2] 5622 - 다이얼

int main()
{
	string str;
	cin >> str;
	int res = 0, arr[]{3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,8,8,8,8,9,9,9,10,10,10,10};
	
	for (int i = 0; i < str.size(); i++)
	{
		int n = str[i] - 'A';
		res += arr[n];
	}
	cout << res;
}