#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <stdio.h>
#include <iomanip>
#include <cmath>
#include <sstream>
#include <cstring>

using namespace std;


template <class N> N ToNumber(string string_number) {
    N number;
    istringstream iss(string_number);
    iss >> number;
    return number;
}



string ReverseString(string str) {
    string new_string = "";
    for(int i=(str.length()-1); i>=0; i--)
        new_string += str.at(i);
    return new_string;
}




string binary(int num) {
    int coefficient = -1, numerator  = num;
    string binary;
    string result;



    if(num <=7) {
        result= "";
        if(num <=3) {
            result="0";
            if(num <=1) {
                result="00";
            }
        }
    }

//  if(num<=7){
//      if(num<=1)binary="00";
//      else if(num<=3)binary="0";
//      else binary="";
//
//  }
    while(coefficient != 0) {
        binary += to_string(numerator % 2);
        coefficient = numerator / 2;
        numerator = coefficient;
    }
    binary =  ReverseString(binary);
    result+=binary;
    return result;
}



string printWords(string str) {
    string word;
    stringstream iss(str);

    while (iss >> word)
        return word;
}


unsigned long long convertBinaryToDecimal(string  n) {
    string reverse = ReverseString(n);
    char cstr[n.size()];
    strcpy(cstr, reverse.c_str());
    unsigned int decimalNumber = 0, i = 0, remainder;
    while (i!=sizeof(cstr)) {
        remainder = (int)cstr[i] -48;
        decimalNumber += (remainder*(pow(2,i)));
        ++i;
    }
    return decimalNumber;
}

int main() {

    std::vector<string> ans (31);

    int number1;

    int number2;

    int number3;

    string inst;

/// test input
    cout << "input your instruction :";
    cin >> inst;

    cout << "input your rd :";
    cin  >>number1;

    cout << "input your rs :";
    cin  >>number2;

    cout << "input your rt :";
    cin  >>number3;



    if(inst =="add" || inst =="nand") { // i-type


        /*  ans.push_back(binary(number1));


            for(int i =0; i<14 ; i++) {
                ans.push_back("0");
            }


            ans.push_back(binary(number2));
            ans.push_back(binary(number3));


            for(int j =0; j<3 ; j++) {   // opcode=000
                ans.push_back("0");
            }
            for(int j =0; j<8 ; j++) {      //fill 0 25-31
                ans.push_back("0");
            }*/

        for(int j =0; j<7 ; j++) {      //fill 0 25-31
            ans.push_back("0");
        }

        for(int j =0; j<3 ; j++) {   // opcode=000
            ans.push_back("0");
        }
        ans.push_back(binary(number3));
        ans.push_back(binary(number2));

        for(int i =0; i<13 ; i++) {
            ans.push_back("0");
        }
        ans.push_back(binary(number1));



    } else

        if(inst =="jalr" ) { // j-type

            for(int j =0; j<7 ; j++) {      //fill 0 25-31
                ans.push_back("0");
            }
            ans.push_back("101");// opcode=101
            ans.push_back(binary(number2));
            ans.push_back(binary(number1));
            for(int i =0; i<16 ; i++) {
                ans.push_back("0");
            }

        }

    if(inst == "halt" || inst =="noop") {
        for(int j =0; j<7 ; j++) {      //fill 0 25-31
            ans.push_back("0");
        }
        if(inst == "halt") {
            ans.push_back("110");// opcode=110
        }
        if(inst == "noop") {
            ans.push_back("111");// opcode=111
        }
        for(int i =0; i<22 ; i++) {
            ans.push_back("0");
        }
    }


    string ansz;
    unsigned long long int_ans=0;
    for(int i =0; i<ans.size() ; i++) { // print out the result!!
        ansz+= ans.at(i);
    }

    int_ans= convertBinaryToDecimal(ansz);
    cout << ansz.length();
    cout <<endl;
    cout <<ansz;
    cout <<endl;
    cout << int_ans;
    cout <<endl;
    cout << binary(number1);
    cout <<endl;
    cout << binary(number2);
    cout <<endl;
    cout << binary(number3);
    cout <<endl;

    ifstream file("C:/Users/LuckyCat/Desktop/comarch/test1.txt");
    string str;
    while (std::getline(file, str)) {
        printWords(str);
    }


    return 0;
}