ns:=T(0x7f, 0x4000, 0, 0x3ffffe, 0x1fffff, 0x200000, 0x3311a1234df31413);
ms:=ns.apply(to_seq);
ns.zipWith(fcn{"%8,x --> %s --> %,x".fmt(vm.arglist.xplode()).println()},
   ms.apply("apply","%,x".fmt),
   ms.apply(from_seq));