C3132121111133313233121111331333133313113313231333133322132233131   >>    C313212111113331323312111133133313331311331323133313332213223313   <<    C3132121111133313233121111331333133313113313231333133322132233133   >>      C3132121111133313233121111331333133313113313231333133322132233132   >>