1unknown: fatal: byte_mask: unknown mask bit in mask: 0x10
20 -> 0x1 -> 0
30x2 -> 1
41 -> 0x2 -> 1
50x4 -> 2
62 -> 0x4 -> 2
70x8 -> 3
8unknown: fatal: byte_mask: unknown mask bit in mask: 0x10
9unknown: fatal: unknown name value "4" in "1234"
10unknown: fatal: unknown name value "a" in "abcd"
11