C11111333133313232233133313331333133313231312111111211331323323131   >>    C1111133313331323223313331333133313331323131211111121133132332313   <<    C11111333133313232233133313331333133313231312111111211331323323133   >>      C11111333133313232233133313331333133313231312111111211331323323132   >>