#include<bits/stdc++.h>
using namespace std;

int main()
{
	int a[10];
	int sum;
	while(cin>>a[0]>>a[1]>>a[2]>>a[3]>>a[4]>>a[5]>>a[6]>>a[7]>>a[8]>>a[9])
	{
		sum = 0;
		for(int i=0;i<10;i++)
		{
			if(a[i]%2!=0)
			{
				sum++;
			}
		}
		cout<<sum<<endl;
	}
}