include "pch.h"

include

using namespace std;

int main() {

	char ch;
	while (cin>>ch) {

		if (ch >= 'A'&&ch <= 'Z') {

			ch = ch + 32;
			printf("%c\n", ch);
		}
		else if (ch >= 'a'&&ch <= 'z') {

			ch = ch - 32;
			printf("%c\n", ch);
		}
		else {

			printf("%d\n", int(ch));
		}

	}

}