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

	char information(char k) {  //A function that receives as a character input, the function must calculate and return the encrypted //character to the resulting character
		int x = 0;
		if (k == 32)     //space
			k = 32;
		  if  (k >= 48 && k <= 57) {  //0-9
			x = k - 48;
			k = 57 - x;
		}
		else if (k >= 65 && k <= 90) { //A-Z
			x = k - 65;
			k = 90 - x;
		}
		else if (k >= 97 && k <= 122) {  //a-z
			x = k - 97;
			k = 122 - x;
		}
		 return k;
	}
	int main() {
		char k ;
		ifstream data("data.txt");  //open file
		ofstream encoding("encoding.txt");  //open the file
		if (!data||!encoding) {   //checking the file
			cout << "can not open the file" << endl;
			return -1;
		}
		k = data.get();
		while (!data.eof()) {   //do it until finish reading data text
			encoding << information(k);;
			k=data.get();
		}
		data.close();
		encoding.close();
	system("pause");
	return 0;
}