C11111333133313232233133313331333133313231312111133132311322311   >>    C1111133313331323223313331333133313331323131211113313231132231   <<    C11111333133313232233133313331333133313231312111133132311322313   >>      C11111333133313232233133313331333133313231312111133132311322312   >>