C11112331312111112111133133313231333132313331333112113313221131   >>    C1111233131211111211113313331323133313231333133311211331322113   <<    C11112331312111112111133133313231333132313331333112113313221133   >>      C11112331312111112111133133313231333132313331333112113313221132   >>