#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>

void main(void) {
	int n,m;
	scanf("%d %d",&n,&m);
	int count = 0;
	for(int i = 0 ; i < n ; i++){

		char str[2][10000] = {"a","a"};
		scanf("%s %s",str[0],str[1]);

		char decision[100] = "a";
		strncpy(decision, str[0], 4);
		decision[5] = '\0';
		if(strcmp(decision,"oooo") != 0 && atoi(str[1]) >= 1200){
            count++;
        }
	}

	printf("%d\n",count);
}