C11111333133313232233133313331333133313231312111111221123133313121
>>
C1111133313331323223313331333133313331323131211111122112313331312
<<
C11111333133313232233133313331333133313231312111111221123133313123
>>
C11111333133313232233133313331333133313231312111111221123133313122
>>