C11111211113313112113313331333133313231323223313231333131131123221   >>    C1111121111331311211331333133313331323132322331323133313113112322   <<    C11111211113313112113313331333133313231323223313231333131131123223   >>      C11111211113313112113313331333133313231323223313231333131131123222   >>