// #include <Arduino.h>

const int SEGMENT0_PINS[] = {23, 22, 16, 5, 18, 21, 2};
const int SEGMENT1_PINS[] = {32, 33, 13, 12, 27, 25, 26};

int digit[10][7] = {
    {0, 0, 0, 0, 0, 0, 1},
    {1, 0, 0, 1, 1, 1, 1},
    {0, 0, 1, 0, 0, 1, 0},
    {0, 0, 0, 0, 1, 1, 0},
    {1, 0, 0, 1, 1, 0, 0},
    {0, 1, 0, 0, 1, 0, 0},
    {0, 1, 0, 0, 0, 0, 0},
    {0, 0, 0, 1, 1, 1, 1},
    {0, 0, 0, 0, 0, 0, 0},
    {0, 0, 0, 0, 1, 0, 0}
};

void setup() {
    for (int i = 0; i < 7; i++) {
        pinMode(SEGMENT0_PINS[i], OUTPUT);
        pinMode(SEGMENT1_PINS[i], OUTPUT);
    }
}

void displayNumber(int num) {
    int hd = num / 10;
    int ld = num % 10;

    for (int j = 0; j < 7; j++) {
        digitalWrite(SEGMENT1_PINS[j], digit[hd][j]);
    }

    for (int k = 0; k < 7; k++) {
        digitalWrite(SEGMENT0_PINS[k], digit[ld][k]);
    }

    delay(1000);
}

void loop() {
    for (int i = 0; i < 100; i++) {
        displayNumber(i);
    }
}