#include <iostream>
using namespace std;
int par (int n)
{
int ok=0;
if(n==0)ok=1;
while ( n!=0)
{if(n%10%2==0)ok=1;
n=n/10;}
if (ok)return 1;
else return 0;
}
int main() {
int a[1000],n,nr=1,i;
for (i=1;i<=n;i++){
cin>>a[i]; nr++;}
int c ,v;
for (i=1;i<=n;i++)
{ c=a[i]%10;
v=a[i]/10;
if(par(c)==1)
if(par(v)==0)nr=nr+1;;
}
cout<<nr;
}
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