#include <iostream>
#include <vector>
#include <string>
#include <utility>
#include <algorithm>


using namespace std;

template<typename RandomIt>
pair<RandomIt, RandomIt> FindStartsWith(RandomIt range_begin, RandomIt range_end, string prefix) {
    auto result = equal_range(range_begin, range_end, prefix, [](const string &lhs, const string &rhs) {
        return lhs < rhs;
    });
    return result;
}

int main() {
    const vector<string> sorted_strings = {"moscow", "motovilikha", "murmansk"};
    auto result = FindStartsWith(begin(sorted_strings), end(sorted_strings), "mo");
    cout << (result.first - begin(sorted_strings)) << ' ' << (result.second - begin(sorted_strings));
    return 0;
}