#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;

int main(void) {
	ios::sync_with_stdio(false);
	cin.tie(nullptr), cout.tie(nullptr);
	string s[3];
	for (int i = 0; i < 3; i++) {
		cin >> s[i];
	}
	int n = s[0].length();
	vector valid(3, vector(3, vector(n, true)));
	for (int i = 0; i < 3; i++) {
		for (int j = 0; j < 3; j++) {
			for (int x = 0; x < n; x++) {
				for (int y = 0; y < n; y++) {
					if (s[i][x] == s[j][y]) {
						valid[i][j][(y - x + n) % n] = false;
					}
				}
			}
		}
	}
	int ans = n * 3 + 1;
	for (int d1 = 0; d1 < n; d1++) {
		if (!valid[0][1][d1]) {
			continue;
		}
		for (int d2 = 0; d2 < n; d2++) {
			if (!valid[0][2][d2] || !valid[1][2][(d2 - d1 + n) % n]) {
				continue;
			}
			int x = 0, y = d1, z = d2;
			auto dis = [&](int u, int v) {
				int l = (v - u + n) % n;
				return min(l, n - l);
			};
			ans = min(ans, dis(x, y) + dis(x, z));
			ans = min(ans, dis(y, x) + dis(y, z));
			ans = min(ans, dis(z, x) + dis(z, y));
		}
	}
	if (ans > n * 3) {
		cout << "-1\n";
	} else {
		cout << ans << '\n';
	}
	return 0;
}