C1111133313331323223313331333133313231333132313331333112113233231   >>    C111113331333132322331333133313331323133313231333133311211323323   <<    C1111133313331323223313331333133313231333132313331333112113233233   >>      C1111133313331323223313331333133313231333132313331333112113233232   >>