C1111233133313231133133313231333133313113313113313231333132333112311   >>    C111123313331323113313331323133313331311331311331323133313233311231   <<    C1111233133313231133133313231333133313113313113313231333132333112313   >>      C1111233133313231133133313231333133313113313113313231333132333112312   >>