C111113331333132322331333133313331333132313121111331311233131113113211   >>    C11111333133313232233133313331333133313231312111133131123313111311321   <<    C111113331333132322331333133313331333132313121111331311233131113113213   >>      C111113331333132322331333133313331333132313121111331311233131113113212   >>