#include <iostream>
#include <stdio.h>
#include <stack>
using namespace std;

int main ()
{
    int qtd;

    string linha;
    int diamantes =0;
    cin >> qtd;



    for (int i= 0; i< qtd;i++)
    {
        diamantes = 0;
        cin >> linha;
        stack<int> myStack;
        for ( int j = 0 ; j < linha.size() ; j++ )
        {
            if (linha[j] == '<' )
            {
                myStack.push('<');
            }
            else
            {
                if (linha[j] == '>' && !myStack.empty() )
                {
                    diamantes++;
                    myStack.pop();

                }
            }

        }
        printf("%d\n",diamantes);

    }