Problem: Tinder sequence

Code: Tinder+sequence/tails_1704938927

Nibbles version: 0.2 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 1.00

Format: Compact | Simple | +Type | Table | JSON | .nbl (DeBruijn) | .nbl (names)

(implicit map) 
    `< (sort) 
        + (add) 
            50 (integer) 
            : (append) 
                10 (integer) 
                : (append) 
                    10 (integer) 
                    `, (range from 0) 
                        18 (integer) 
    * (join) <--arg( B A ) 
        "\'" (string) 
        `@ (to base) 
            ~ (auto = 10) 
            (implicit arg = B)