#include <stdio.h>


	
int main() {

	
	char  word;
      int count = 0;
	for (; (word = getchar()) != EOF;) {
			if (word >= 'a'&&word <= 'z') {
				word -= 32;
			}
			else if (word >= 'A'&&word <= 'Z'){
				word += 32;
			}
			if (word == '\n') {
				count++;
			}
			putchar(word);
    	}
      printf("\nPočet riadkov: %d\n", count);
			
return 0;

}