#include <bits/stdc++.h>
using namespace std;
#define int long long

void solve()
{
	string s;
	cin >> s;
	int n = s.length();
	s += s;
	vector<int> cons;


	bool ok = 0;
	for(int i = 0; i < n; ++i) {
		if(s[i] != s[i + 1]) {
			int cur = 1;
			for(int j = i + 1; j + 1 < i + 1 + n; ++j) {
				if(s[j] == s[j + 1]) {
					++cur;
				} else {
					cons.emplace_back(cur);
					cur = 1;
				}
			}
			cons.emplace_back(cur);
			ok = 1;
			break;
		}
	}
	int ans = 0;
	if(ok) {
		bool minus = 0;
		for(auto &c : cons) {
			ans += c / 2;
			if(c % 2 == 0 && c != 0)
				minus = 1;
		}
		ans = max(0ll, ans - minus);
	} else {
		ans = n / 2;
	}
	cout << ans << '\n';
}

signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	int T = 1;
	cin >> T;
	while(T--) solve();
	return 0;
}