Problem: french sport climbing scale

Code: french+sport+climbing+scale/whio_1725645228

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 string concatenation) 
    , (range from 1) 
        3 (integer) 
    << (init) <--arg( B A ) 
        + (concat) 
            . (map) 
                , (range from 1) 
                    7 (integer) 
                + (concat) <--arg( C ) 
                    . (map) 
                        "abc" (string) 
                        . (map) <--arg( D ) 
                            < (take) 
                                / (divide) 
                                    @ (= C) 
                                    2 (integer) 
                                """+" (string list) 
                            : (append) <--arg( E ) 
                                + (add) 
                                    2 (integer) 
                                    _ (= C) 
                                : (append) 
                                    @ (= D) 
                                    (implicit arg = E)