change this code to switch statement.
#include <iostream>using namespace std;
int main(){
//NOTE* Your message should be in uppercase letters.
cout << “Welcome to Caesar’s Cipher 2.0n”<< ” 1) Encode using classicn”<< ” 2) Decode using classicn”<< ” 3) Encode using improvedn”<< ” 4) Decode using improvedn”
<< “Enter command [1.2.3.4]: “;
int command;cin >> command;
int shift = 0;cout << ” Chose your shift value: “;cin >> shift;
cout << “Enter your sentance to decode or encode:”;string input;getline(cin, input);getline(cin, input);string output = input;
for (int i=0; i<input.length(); i++){if ((input[i] >= ‘A’) && (input[i] <=’Z’)){if ((command == 1) || (command == 3))output[i] = input[i] – shift;
else if ((command ==
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