#include <stdio.h>
#include <ctype.h>

int main (){
	int c = 0;
	char musor;
	int counter = 0;
	c = getchar();
	musor = getchar();
	while(fgets(input[i], 100, stdin) != EOF){
		if (c >= 'a' && c <= 'z'){
			putchar (c - 'a' + 'A');
			printf ("\n");
			counter++;
		}
		else if ( c >= 'A' && c <= 'Z'){
			putchar (c + 'a' - 'A');
			printf ("\n");
			counter++;
		}
		else if (!isalpha (c)) {
			putchar (c);
			counter++;
		}
		c = getchar();
		musor = getchar();
	//counter++;
	}
	
	printf("\nPočet riadkov: %d\n",counter);
	
	return 0;
}