C11111211113313112113313331333133313331333132322121111331323233131   >>    C1111121111331311211331333133313331333133313232212111133132323313   <<    C11111211113313112113313331333133313331333132322121111331323233133   >>      C11111211113313112113313331333133313331333132322121111331323233132   >>