#include <bits/stdc++.h>

using namespace std;

set<vector<string>> nums[6];

void init1() {
    // create
    vector<string> first = {
        ":::",
        ":o:",
        ":::"
    };

    // insert
    nums[0].insert(move(first));
}

void init2() {
    vector<string> first = {
        ":::",
        "o:o",
        ":::"
    };
    vector<string> second = {
        ":o:",
        ":::",
        ":o:"
    };

    nums[1].insert(move(first));
    nums[1].insert(move(second));
}

void init3() {
    vector<string> first = {
        "o::",
        ":o:",
        "::o"
    };
    vector<string> second = {
        "::o",
        ":o:",
        "o::"
    };

    nums[2].insert(move(first));
    nums[2].insert(move(second));
}

void init4() {
    vector<string> first = {
        "o:o",
        ":::",
        "o:o"
    };

    nums[3].insert(move(first));
}

void init5() {
    vector<string> first = {
        "o:o",
        ":o:",
        "o:o"
    };

    nums[4].insert(move(first));
}

void init6() {
    vector<string> first = {
        "o:o",
        "o:o",
        "o:o"
    };
    vector<string> second = {
        "ooo",
        ":::",
        "ooo"
    };

    nums[5].insert(move(first));
    nums[5].insert(move(second));
}



int main() {
    init1();
    init2();
    init3();
    init4();
    init5();
    init6();

    vector<string> input;

    for (int i = 0; i < 3; ++i) {
        string line;
        cin >> line;
        input.emplace_back(move(line));
    }

    for (int i = 0; i < 6; ++i)
        if (nums[i].find(input) != nums[i].end()) {
            cout << i + 1 << endl;
            return 0;
        }
    cout << "unknown" << endl;

    return 0;
}