#include <stdio.h>

int main()
{
    int quote_counter;
    char c;

    quote_counter = 0;

    while (c != EOF)
    {
        c = getchar();
        if (c == '"') {
            if (quote_counter % 2 == 0) {
                putchar('\`');
                putchar('\`');
            }
            else {
                putchar('\'');
                putchar('\'');
            }
            quote_counter++;
        }
        else {
            putchar(c);
        }
    }

    return 0;
}