a=int(raw_input())
count=2
for i in range(0,a):
    b=str(raw_input())
    if b[-4]=='+':
        count+=2
    else:
        count+=1
if count==13:
    count+=1
print(count*100)

solved!

Since the problem says names consist of Latin letters (donno if + is used in Latin names), so string matching must include '+one' rather '+'

so after correction of if b[-4]=='+': to if b[-4:]=='+one': it got accepted