1 2 3 4 5 6
F ← ÷⧻⤙(≡/+ ∿×τ ⊞×) [[0 4 7 11] [¯1 2 5 9] [¯1 3 6 10]] ⊏ [0 0 0 0 1 1 1 2] ×220 ˜ⁿ2÷12 ˙⊂/⊂≡⌞(×∿×τ⟜F) ÷⟜⇡&asr &ap