#include <iostream>
#include <queue>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;

int main()
{
    queue<uint16_t> quack;
    ifstream fin("quack.in");
    ofstream fout("quack.out");

    vector < uint16_t > registers (26, 0);
    vector < pair < int , string > > labels;
    vector < string > commands;

    string command;
    int it = -1;

    while(fin >> command)
    {
        commands.push_back(command);
        it++;
        if (command[0] == ':')
        {
            pair < int, string > pair1;
            pair1.first = it;
            pair1.second = command.substr(1, command.length());
            labels.push_back(pair1);
        }
    }

    it = 0;
    while( it < commands.size())
    {
        uint16_t num;
    //  cout << commands[it] << ", it: " << it << endl;
        if (commands[it][0] == '+')
        {
            uint16_t x = quack.front();
            quack.pop();
            uint16_t y = quack.front();
            quack.pop();
            uint16_t z = (x + y);
            quack.push( z );
        } else if (commands[it][0] == '-')
        {
            uint16_t x = quack.front();
            quack.pop();
            uint16_t y = quack.front();
            quack.pop();
            uint16_t z = (x - y);
            quack.push( z );
        } else if (commands[it][0] == '*')
        {
            uint16_t x = quack.front();
            quack.pop();
            uint16_t y = quack.front();
            quack.pop();
            uint16_t z = (x * y);
            quack.push( z );
        } else if (commands[it][0] == '/')
        {
            uint16_t x = quack.front();
            quack.pop();
            uint16_t y = quack.front();
            quack.pop();
            if (y == 0)
            {
                uint16_t z = 0;
                quack.push( z );
            } else {
                uint16_t z = (x / y);
                quack.push( z );
            }
        } else if (commands[it][0] == '%')
        {
            uint16_t x = quack.front();
            quack.pop();
            uint16_t y = quack.front();
            quack.pop();
            if (y == 0)
            {
                uint16_t z = 0;
                quack.push( z );
            } else {
                uint16_t z = (x % y);
                quack.push( z );
            }
        } else if (commands[it][0] == 'J')
        {
            string label = commands[it].substr(1, commands[it].length());
            for (int i = 0; i < labels.size(); i++)
            {
                if (labels[i].second == label)
                {
                    it = labels[i].first;
                }
            }
        } else if (commands[it][0] == '>')
        {
            uint16_t x = quack.front();
            quack.pop();
            registers[commands[it][1] - 'a'] = x ;
            //NOT ALL
        } else if (commands[it][0] == '<')
        {
            quack.push(registers[commands[it][1] - 'a']);
        } else if (commands[it][0] == 'P')
        {
            if (commands[it].length() == 1)
            {
                fout << quack.front() << endl;
                quack.pop();
            } else {
                fout << registers[commands[it][1] - 'a'] << endl;
            }
        } else if (commands[it][0] == 'Z')
        {
            if (registers[commands[it][1] - 'a'] == 0)
            {
                string label = commands[it].substr(2, commands[it].length());
                for (int i = 0; i < labels.size(); i++)
                {
                    if (labels[i].second == label)
                    {
                        it = labels[i].first;
                    }
                }
            }
        } else if (commands[it][0] == 'E')
        {
            if (registers[commands[it][1] - 'a'] == registers[commands[it][2] - 'a'])
            {
                string label = commands[it].substr(3, commands[it].length());
                for (int i = 0; i < labels.size(); i++)
                {
                    if (labels[i].second == label)
                    {
                        it = labels[i].first;
                    }
                }
            }
        } else if (commands[it][0] == 'G')
        {
            if (registers[commands[it][1] - 'a'] > registers[commands[it][2] - 'a'])
            {
                string label = commands[it].substr(3, commands[it].length());
                for (int i = 0; i < labels.size(); i++)
                {
                    if (labels[i].second == label)
                    {
                        it = labels[i].first;
                    }
                }
            }
        } else if (commands[it][0] == 'C')
        {
            if (commands[it].length() == 0)
            {
                uint16_t x = quack.front() % 256;
                quack.pop();
                fout << static_cast<char>(x);
            } else {
                fout << static_cast<char>(registers[commands[it][1] - 'a']);
            }
        } else if (commands[it][0] == 'Q')
        {
            break;
        } else if ( istringstream ( commands[it] ) >> num )
        {
            quack.push(num );
        }
        it++;
    }

    return 0;
}