C1111233131211111211113313331333133313112113121111113313331322331333221   >>    C111123313121111121111331333133313331311211312111111331333132233133322   <<    C1111233131211111211113313331333133313112113121111113313331322331333223   >>      C1111233131211111211113313331333133313112113121111113313331322331333222   >>