C31232233133313221211113313331323133313233313233313231333113231   >>    C3123223313331322121111331333132313331323331323331323133311323   <<    C31232233133313221211113313331323133313233313233313231333113233   >>      C31232233133313221211113313331323133313233313233313231333113232   >>