C111123313331323113313331333133313331323133112113313232212111111132211   >>    C11112331333132311331333133313331333132313311211331323221211111113221   <<    C111123313331323113313331333133313331323133112113313232212111111132213   >>      C111123313331323113313331333133313331323133112113313232212111111132212   >>