#include using namespace std; int gs(int n) { int sum = 0; while (n != 0) { sum = sum + n % 10; n = n / 10; } return sum; } bool oe(int N) { int r = N % 2; if (r == 0) return true; else return false; } int main() { int n,s=0; cin>>n; for (int i = 0; i < n; i++) { if( oe( gs(i) ) ) s++; } cout
