#include <iostream> using namespace std; int main(){ int a,b,cnt=0; cin>>a>>b; int sum=a*b; int num1[a][b],num2[a][b]; for (int row=0;row<a;row++){ for (int col=0;col<a;col++){ cin>>num1[row][col]; } } for (int row=0;row<a;row++){ for (int col=0;col<a;col++){ cin>>num2[row][col]; } } for (int row=0;row<a;row++){ for (int col=0;col<a;col++){ if(num1[row][col]==num2[row][col]){ cnt++; } } } printf("%.2f",float(cnt/float(sum)*100)); return 0; }