by@kurgm
WA
574ms
0 :>R exec {&=x {$x - 3 -->} 4 t ->} 3 $times &=t! stack :r :<
54 94 98 25 98 16 67 56 55 77 08 37
[0, 0.0, 0, -23, 86.0, 61, -52, 90.0, -21, -10, 48.0, 18]