C111123313331323113313331323331323132313231323113121111331323211   >>    C11112331333132311331333132333132313231323132311312111133132321   <<    C111123313331323113313331323331323132313231323113121111331323213   >>      C111123313331323113313331323331323132313231323113121111331323212   >>