#include <stdio.h>


int findSeq(){
  char charArray[] = {"0000110"};
  int pos = 0;  //pos in array
  int found = 0;

  char curr;

  int flag = 1;

  while (flag != EOF){
    flag = scanf("%c%*c", &curr); //grab user's input
    //printf("Users input: %c\n", curr); //print user's input
    //printf("Array pos: %c\n", charArray[pos]); //print current position in array

    if(curr == charArray[pos]){
      pos++;
    } else{
      pos=0;
    }



    if (pos == 3){
      pos = 0;
      found++;
    }

  }

  return found;
}


int main(){
  printf("Found: %d\n", findSeq());
  return 0;
}