# include<stdio.h> #include<iostream> #include<cmath> using namespace std; int main(){ /* int minn=1; int maxn=1; int a[1000][1000]; int n; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ cin>>a[i][j]; if(a[i][j]>=maxn){ maxn=a[i][j]; } else if(a[i][j]<minn){ minn=a[i][j]; } } } cout<<minn<<" "<<maxn; */ /*int n,m; int a[100][100]; int b[100][100]; int c[100][100]; cin>>n>>m; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>a[i][j]; } } for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>b[i][j]; } } for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ c[i][j]=a[i][j]+b[i][j]; cout<<c[i][j]<<" "; } cout<<endl; }*/ /*int n,m; int a[100][100]; cin>>n>>m; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>a[i][j]; } } for(int i=1;i<=n;i++){ for(int j=m;j>=1;j--){ cout<<a[i][j]<<" "; } cout<<endl; }*/ /*int i,j,n,m; int a[6][6]; cin>>n>>m; for(i = 1;i <= 5;i++){ for(j = 1;j <= 5;j++){ if(i==n) cin>>a[m][j]; else if(i==m) cin>>a[n][j]; else cin>>a[i][j]; } } for(i = 1;i <= 5;i++){ cout<<a[i][1]; for(j = 2;j <= 5;j++) cout<<" "<<a[i][j]; cout<<endl; } */ /* int n,m; cin>>n>>m; int a[100][100]; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>a[i][j]; } } for(int j=1;j<=m;j++){ for(int i=1;i<=n;i++){ cout<<a[i][j]<<" "; } cout<<endl; }*/ /* int n,m; cin>>n>>m; int a[100][100]; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>a[i][j]; } } for(int j=1;j<=m;j++){ for(int i=n;i>=1;i--){ cout<<a[i][j]<<" "; } cout<<endl; }*/ /* int n,m; cin>>n>>m; int a[n][n]; for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ cin>>a[i][j];if(i==j||i+j==n-1) a[i][j]+=m; } } for(int i=0;i<n;i++){ for(int j=0;j<n;j++){ cout<<" "<<a[i][j]<<" "; } cout<<endl; } */ /*long long n,a[1000],i,j,x=0,min; cin>>n; for(i=0;i<n;i++){ cin>>a[i]; } min=abs(a[1]-a[0]); for(i=0;i<n;i++){ for(j=i+1;j<n;j++){ x=abs(a[i]-a[j]); if(x<min) min=x; } } cout<<min<<endl;*/ int n,m; int a[100][100]; int b[100][100]; double c=0; cin>>n>>m; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>a[i][j]; } } for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>b[i][j]; } } for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ if(a[i][j]==b[i][j]) { c++; } } } printf("%.2lf",c/(n*m)*100.0); return 0; }