#include <bits/stdc++.h>

using namespace std;

int main ()
{
    int t;
    cin >> t;

    while (t--) {
        string s;
        cin >> s;

        int ans = 0;
        int cnt = 0;
        for (char c : s) {
            if (c == '<') cnt++;
            else if (c == '>' && cnt) {
                ans++;
                cnt--
            }
        }

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

    return 0;
}