C3123223313331322121111331333133313231333132212111111211331333223231321   >>    C312322331333132212111133133313331323133313221211111121133133322323132   <<    C3123223313331322121111331333133313231333132212111111211331333223231323   >>      C3123223313331322121111331333133313231333132212111111211331333223231322   >>