import sys
pin = sys.stdin.readline

def ST(): return pin().rstrip()
def IN(): return int(pin())
def IM(): return map(int, pin().split())
def IL(): return list(map(int, pin().split()))
def SR(n:int): return [pin().rstrip() for _ in range(n)]
def IMatrix(n:int): return [IL() for _ in range(n)]

##-----------------
import random
import math
import bisect
import itertools
from collections import defaultdict, deque
#from sortedcontainers import SortedList
##-----------------

N, M = IM()
ans = 0
for _ in range(N):
	S, R = pin().split()
	if int(R) >= 1200:
		if S[:4] != "oooo":
			ans += 1
print(ans)