C31232233133313221211113313331333131211113313231333132331312321   >>    C3123223313331322121111331333133313121111331323133313233131232   <<    C31232233133313221211113313331333131211113313231333132331312323   >>      C31232233133313221211113313331333131211113313231333132331312322   >>