2447 - Uri

#include <iostream>
#include <cstdio>

using namespace std;

int main() {
  int amountVisitor, heiMin, heiMax, visitorAllow = 0, visitor;

  cin >> amountVisitor >> heiMin >> heiMax;

  while(scanf("%d", &visitor) != EOF && amountVisitor > 1){
    if(visitor >= 50 && visitor <= 250 && visitor <= heiMax && visitor >= heiMin){
      visitorAllow++;
    }
    amountVisitor--;
  }

  cout << visitorAllow << endl;
}