문제
풀이
#include <iostream>
#include <cmath>
using namespace std;
void solve(void) {
int a, b; cin >> a >> b;
cout << abs((a-1)/4-(b-1)/4) + abs((a-1)%4-(b-1)%4);
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}