# ZeroJudge - f327: 刪除欄位
### 題目連結：https://zerojudge.tw/ShowProblem?problemid=f327
###### tags: `ZeroJudge` `數學`

#include <iostream>
#include <string>
#include <cmath>
using namespace std;

int Letters2Number(string code) {
	int buffer = 0;
	for (int i = 0; i != code.size(); ++i)
		buffer = buffer * 26 + code[i] - 'A' + 1;
	return buffer;
}

int main() {
	cin.sync_with_stdio(false); cin.tie(nullptr);
	string start, end;
	while (cin >> start >> end)
		cout << abs(Letters2Number(start) - Letters2Number(end)) + 1 << '\n';
}