n = int(input())
am = 0
for i in range(n):
temp = input()
res = temp.find('+one')
if (res != -1):
am += 1
solo_guest = n - am
if (solo_guest + am * 2 == 11):
print(1400)
else:
print(solo_guest * 100 + am*2*100 + 200)
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