C1111233131211111211113313331333133313231323331333133313233313231333222331   >>    C111123313121111121111331333133313331323132333133313331323331323133322233   <<    C1111233131211111211113313331333133313231323331333133313233313231333222333   >>      C1111233131211111211113313331333133313231323331333133313233313231333222332   >>