C1111233133313231133133313231333133313113313113313231333132333112313331123231   >>    C111123313331323113313331323133313331311331311331323133313233311231333112323   <<    C1111233133313231133133313231333133313113313113313231333132333112313331123233   >>      C1111233133313231133133313231333133313113313113313231333132333112313331123232   >>