C313212111113331323312111133133313331333132233133313133311233131312321   >>    C31321211111333132331211113313331333133313223313331313331123313131232   <<    C313212111113331323312111133133313331333132233133313133311233131312323   >>      C313212111113331323312111133133313331333132233133313133311233131312322   >>