#include<stdio.h>
#include<stdlib.h>

void printCharacter(int c);

int main() {
    int lineCount = 0;
    int c;
    char outChar;

    while((c = getchar()) != EOF) {
        if (c >= 'a' && c <= 'z') {
            outChar = c - 'a' + 'A';
        } else if (c >= 'A' && c <= 'Z') {
            outChar = c - 'A' + 'a';
        } else {
            if (c == '\n') {
                lineCount++;
            }

            outChar = c;
        }

        printCharacter(outChar);
    }

    printf("\nPočet riadkov: %d\n", lineCount);
}

void printCharacter(int c) {
    printf("%c", c);
}