#include <iostream>
#include <string>
#include <sstream>
 
using namespace std;
 
int main()
{
int s;
string ss;
cout << "Enter encrypted code ";
cin >> ss;
string a[] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"}; 
int l = 0;
string sas = ss.substr(0,1);
string b;
while(sas != NULL) {
if(sas == " ") {
b += " ";
l += 1;
sas = ss.substr(l,1);
}
stringstream sss(sas);
sss >> s;
if(s == 0) {
l += 1;
sas = ss.substr(l,2);
stringstream sss(sas);
sss >> s;
l += 1;
}
b += a[s-1];
l += 1;
sas = ss.substr(l,1);
}
cout << endl << b;
}

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

OSAwMTIwMTUwMjI1IDAyNTAxNTAyMSAwMTkwMTUgMDEzMDIxMzg=

9 0120150225 025015021 019015 01302138