#include <iostream>
#include <vector>
#include <set>


void substringDeletion(std::string& mainString, const std::string& targetString, unsigned short& opers)
{
    const unsigned char startFromPos = 0;
    std::string::size_type firstPos = mainString.find(targetString, startFromPos);

    while (firstPos != std::string::npos)
    {
        opers++;
        mainString.erase(firstPos, targetString.length());
        firstPos = mainString.find(targetString, startFromPos);
    }
}


int main()
{
    std::string S;
    std::cin >> S;

    std::set<std::string> uniqueDuplicates;
    unsigned short operations = 0;

    for (unsigned short i = 0; i < S.length(); ++i)
    {
        const unsigned short sdLength = 2;
        std::string tmpSpecialDuplicate(sdLength, S[i]);
        uniqueDuplicates.insert(tmpSpecialDuplicate);
    }

    const std::vector<std::string> specialDuplicates(uniqueDuplicates.begin(), uniqueDuplicates.end());
    const unsigned char sdVectorSize = specialDuplicates.size();

    for (unsigned char sdIndex = 0; sdIndex < sdVectorSize; ++sdIndex)
     for (unsigned char sdIndex = 0; sdIndex < sdVectorSize; ++sdIndex)
        substringDeletion(S, specialDuplicates[sdIndex], operations);

    std::cout << (!S.empty() ? S : "Empty String") << std::endl;
    std::cout << operations << " operations" << std::endl;
    return 0;
}