#include <stdio.h>

void aoc201501(char *data, size_t len) {
    (void)len; // unused argument
    int floor = 0;
    while (*data) {
        if (*data == '(') floor++;
        else if (*data == ')') floor--;
        data++;
    }
    printf("Santa is taken to floor {%d}.\n", floor);
}
