C11111333133313232233133313331333133313231312111133132213332223213131   >>    C1111133313331323223313331333133313331323131211113313221333222321313   <<    C11111333133313232233133313331333133313231312111133132213332223213133   >>      C11111333133313232233133313331333133313231312111133132213332223213132   >>