#include<bits/stdc++.h> using namespace std; int n,m,a[105][105],c,s; int main(){ cin>>n>>m; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++){ cin>>a[i][j]; s=0; while(a[i][j]){ s+=a[i][j]%10; a[i][j]/=10; } if(s%2==1){ c++; } } } cout<<c; return 0; }