#include <iostream>#include <cstdio>#include <cstdlib>#include <cstring>#include <cmath>using namespace std;int main(){ int t; scanf("%d", &t); getchar(); while (t--) { long long ans = 0; int x = 0; int y = 0; char ch; while (ch = getchar(), ch != '5') { switch (ch) { case '1': ans -= y * 2 - 1; x--; y--; break; case '2': y--; break; case '3': ans += y * 2 - 1; x++; y--; break; case '4': ans -= y * 2; x--; break; case '6': ans += y * 2; x++; break; case '7': ans -= y * 2 + 1; x--; y++; break; case '8': y++; break; case '9': ans += y * 2 + 1; x++; y++; break; } } getchar(); if (ans < 0) ans = -ans; if (ans & 1) cout << ans / 2 << ".5" << endl; else cout << ans / 2 << endl; } return 0;}
