3 ms·Ah, if we have to preserve the sequence: ((⊃∘⍒0⌷⍉)⌷⊢)(+\,∘⍪,\)by arcfide 10y agoAh, if we have to preserve the sequence: ((⊃∘⍒0⌷⍉)⌷⊢)(+\,∘⍪,\)