52.cpp

#include <bits/stdc++.h>
#include <iostream>
using namespace std;

int main(){
    //program to convert a string into keypard number form.
    string s;
    std::getline(std::cin, s);
    map<char, string> m;
    m['A'] = "2";
    m['B'] = "22";
    m['C'] = "222";
    m['D'] = "3";
    m['E'] = "33";
    m['F'] = "333";
    m['G'] = "4";
    m['H'] = "44";
    m['I'] = "444";
    m['J'] = "5";
    m['K'] = "55";
    m['L'] = "555";
    m['M'] = "6";
    m['N'] = "66";
    m['O'] = "666";
    m['P'] = "7";
    m['Q'] = "77";
    m['R'] = "777";
    m['S'] = "7777";
    m['T'] = "8";
    m['U'] = "88";
    m['V'] = "888";
    m['W'] = "9";
    m['X'] = "99";
    m['Y'] = "999";
    m['Z'] = "9999";
    string ans = "";
    for(int i=0;i<s.length();i++){
        if(s[i]==' ') ans += "0";
        else ans = ans + m[s[i]];
    }
    
    cout<<ans<<endl;
    return 0;
}