C1111133313331323223313331333133313231323112113313121133131121131111   >>    C111113331333132322331333133313331323132311211331312113313112113111   <<    C1111133313331323223313331333133313231323112113313121133131121131113   >>      C1111133313331323223313331333133313231323112113313121133131121131112   >>