Convert Cardinal Numbers (integers) into English words

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char unit[20][20] = {"", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten",
"Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"};

char tens[10][10]={"","", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};

char place[5][5] = {"","十","百","千","萬"};

char unit[10][5] = {"○","一","二","三","四","五","六","七","八","九"};