#include <stdio.h>
#include <unistd.h>
#include <stdbool.h>

int main() {
    int scope = 0;
    bool in_string = false;
    bool escape_next = false;

    char c;
    while (read(STDIN_FILENO, &c, 1) > 0) {
        putchar(c);

        if (c == '{' || c == '[') {
            scope++;
            putchar('\n');
        }
        else if (c == '}' || c == ']') {
            scope--;
        }
    }

    return 0;
}