da=... @(a)max(cumsum(92-(a(a>90)))) S1 = '[1]'; S2 = '[1, 2, 3]'; S3 = '[[1, 2, 3]]'; S4 = '[3, [3, [3], 3], 3]'; S5 = '[[[[1], 2], [3, [4]]]]'; S6 = '[1, [[3]], [5, 6], [[[[8]]]], 1]'; S7 = '[1, [[2, 3, [[4], 5], 6, [7, 8]], 9, [10, [[[11]]]], 12, 13], 14]'; S8 = '[[[[[[[3]]]]]]]'; da(S1) da(S2) da(S3) da(S4) da(S5) da(S6) da(S7) da(S8)