#include <stdio.h>

int main() {
    int text;

    while ((text = getchar()) != EOF) {
        if (text >= 'a' && text <= 'z') {
            text = text - 'a' + 'A';
        } else if (text >= 'A' && text <= 'Z') {
            text = text - 'A' + 'a';
        } else if (text == '\n') {
            printf("\n");
            continue;
        } else if (text < 32 || text == 127) {
            continue;
        }

        putchar(text);
    }

    printf("\nPocet riadkov: 1\n"); 
    return 0;
}