f = open('24.txt')
l = [line.strip() for line in f]
gcnt=0

for i in range(len(l)):
    s = l[i]
    cntA =0
    cntE=0
    for j in range(len(s)):
        if s[j]=='A':
            cntA+=1
        elif s[j]=='E':
            cntE+=1
    if cntA>cntE:
        gcnt+=1
print(gcnt)