#uri 1069
from collections import deque
while True:
    try:
        n = int(input())
        valid = ['<','>']
        while(n>0):
            entrada = input()
            stack = deque()
            d=0
            for i in entrada:
                if(len(stack)!=0 and stack[-1]=='<' and i=='>'):
                    d+=1
                    stack.pop()
                elif i in valid:
                    stack.append(i)
            print(d)
            n-=1
    except EOFError:
        break