C11111211113313112113313331333133313331333132313231333133313331323221312331   >>    C1111121111331311211331333133313331333133313231323133313331333132322131233   <<    C11111211113313112113313331333133313331333132313231333133313331323221312333   >>      C11111211113313112113313331333133313331333132313231333133313331323221312332   >>