C1111233133313231133133313331323133313113313121111133313221311311   >>    C111123313331323113313331333132313331311331312111113331322131131   <<    C1111233133313231133133313331323133313113313121111133313221311313   >>      C1111233133313231133133313331323133313113313121111133313221311312   >>