C1111233133313231133133313231333133313113313113313231333132333112313321   >>    C111123313331323113313331323133313331311331311331323133313233311231332   <<    C1111233133313231133133313231333133313113313113313231333132333112313323   >>      C1111233133313231133133313231333133313113313113313231333132333112313322   >>