Problem: simple math

Code: simple+math/tails_1694399559

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) 
    ? (if/else) 
        - (subtract) 
            , (length) 
                _ (= ints) 
            ~ (auto = 1) 
        + (sum) <--arg( A ) 
            ;$ (= ints) 
        "\x04w" (string) 
    - (diff) 
        + (add) 
            ~ (auto = 1) 
            "{" (string) 
        "" (string)