f = int(input())
friends = []
cnt  = 0
for i in range(f):
    j = str(input())
    if j[-4:] == "+one":
        cnt += 200
    else:
        cnt+= 100
if ((cnt/100)+2) == 13:
    cnt += 300
else:
    cnt += 200

print(cnt)

I solve it by this