C3123223313331322121111331333133313231333132212111112113313231312112321   >>    C312322331333132212111133133313331323133313221211111211331323131211232   <<    C3123223313331322121111331333133313231333132212111112113313231312112323   >>      C3123223313331322121111331333133313231333132212111112113313231312112322   >>