def Mag.d4
import bend-kit-bignum@0.1.0.0/bigint.bend as Bigintimport Base
301def Mag.d4(+x: U32, acc: String) -> String:
302 SCon{Mag.dig((x / 1000 : U32)), SCon{Mag.dig(((x / 100) % 10 : U32)),
303 SCon{Mag.dig(((x / 10) % 10 : U32)), SCon{Mag.dig((x % 10 : U32)), acc}}}}