C3123223313331322121111331333133313231333132212111111222331311213221   >>    C312322331333132212111133133313331323133313221211111122233131121322   <<    C3123223313331322121111331333133313231333132212111111222331311213223   >>      C3123223313331322121111331333133313231333132212111111222331311213222   >>