#include <bits/stdc++.h> using namespace std; int main() { int m, n; cin >> m >> n; int img1[105][105]; int img2[105][105]; for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { cin >> img1[i][j]; } } for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { cin >> img2[i][j]; } } int same = 0; int total = m * n; for (int i = 0; i < m; i++) { for (int j = 0; j < n; j++) { if (img1[i][j] == img2[i][j]) { same++; } } } double rate = (same * 100.0) / total; cout << fixed << setprecision(2) << rate << endl; return 0; }