Safe two values as one index in an array so i can call those pairs with a specific index : I want to put two values in an `array`, but both in the same `index`. Like

    char array1[i] = array2[i], array3[i+1];

When i print `array2` and `array3`

    for (int i = 0, i < 3; i++) {
         printf("%c%c ", array2[i], array3[i+1]);
    }

my output is like: 12 34 56 (each of those pairs should be in one `index` now)