#include <iostream>
#include <string>
using namespace std;

void cezar(string a1,int key1,int caseChoose1){
	for(int i = 0; i<a1.length() ;i++){
		if (caseChoose1 == 1)
     a1[i] +=key1;//шифрование
        if (caseChoose1 == 2)
	 a1[i] -=key1;//дешифрование
	}
cout << a1 << endl;
}

int main (int argc[], char* argv[50])
{
setlocale(LC_ALL, "Russian");
string a;
	int key,caseChoose;
	key = atoi(argv[1]);
	caseChoose = atoi(argv[2]);
    a = argv[3];

   cezar(a,key,caseChoose);

	system("PAUSE");
}