#include <stdio.h>
int main(){
	int r = 0;
	int counter = 0;
while((r = getchar()) !=EOF && r){
	if (r == '\n'){
		counter++;
	}

	if(r >= 'a' && r <= 'z'){
	r = 'a' + 'A';
	}
	else if(r >= 'A' && r <= 'Z'){
		r = 'A' + 'Z';
	}
putchar(r);
}
printf("\nPočet riadkov: %d\n");
return 0;
}