N   c c b u   [:.u-. Ru ]     u c u.
u d::v

f () {
     : Vc_ = ::().cc()
      = [1].::32().u()
     b = [2].::32().u()

    !("u:              {}",  + b)
    !("ffc:       {}",  - b)
    !("uc:          {}",  * b)
    !(" qu: {}",   b)  uc  z
    !(":        {}",  % b)     f 
}