#include <stdio.h>

int counter = 0;

void rec (char *str) {
    for (size_t i = 0; str[i] != 0; ++i) {
        if (str[i] == '0') {
            int t = ++counter;
            printf("    \"%s\" -> T%d [color=black]\n", str, t);
            str[i] = '+';
            printf("    T%d -> \"%s\" [color=green]\n", t, str);
            rec(str);
            str[i] = '-';
            printf("    T%d -> \"%s\" [color=red]\n", t, str);
            rec(str);
            str[i] = '0';
        }
    }
}

int main2() {
    char str[] = "0000\0";
    printf("digraph {\n");
    rec(str);
    printf("    ");
    if (counter > 1) {
        printf("T1");
    }
    for (int i = 2; i <= counter; ++i) {
        printf(", T%d", i);
    }
    if (counter > 1) {
        printf(" [shape=point]");
    }
    printf("\n}\n");
}

int main(void) {
    unsigned short int x = 65535; // 1111 1111 1111 1111
    short int y = x;
    printf("%d", y);
}