C111123313331323113313331333133313231323133313231333223313113311   >>    C11112331333132311331333133313331323132313331323133322331311331   <<    C111123313331323113313331333133313231323133313231333223313113313   >>      C111123313331323113313331333133313231323133313231333223313113312   >>