C11112331312111112111133132313231333132313231323133313232233133322221   >>    C1111233131211111211113313231323133313231323132313331323223313332222   <<    C11112331312111112111133132313231333132313231323133313232233133322223   >>      C11112331312111112111133132313231333132313231323133313232233133322222   >>