C11111333133313232233133313331333133112111112113313231333132221311   >>    C1111133313331323223313331333133313311211111211331323133313222131   <<    C11111333133313232233133313331333133112111112113313231333132221313   >>      C11111333133313232233133313331333133112111112113313231333132221312   >>