a12
a21
a28
a30
a62
b1
b10
b11
b12
b13
b14
b15
b16
b17
b18
b19
b2
b20
b21
b22
b23
b24
b25
b26
b27
b28
b29
b3
b30
b31
b32
b33
b34
b35
b36
b37
b38
b39
b4
b40
b41
b42
b43
b44
b45
b46
b47
b49
b5
b50
b51
b52
b53
b54
b55
b56
b57
b58
b59
b6
b60
b61
b62
b63
b65
b66
b7
b8
c14
c35
c4
c47
c51
c53
c62
c63
c9