The Characters/萬.
Instead of 4 suits in a deck of playing cards, you have 3 suits, running from 1 to 9 rather than 1 to 10. The characters are one of these suits, standing for the gratuity granted, with the unit of ten thousand.
Ten Thousand. Chinese character: 一萬 /yī wàn/
Twenty Thousand. Chinese character: 二萬 /èr wàn/
Thirty Thousand. Chinese character: 三萬 /sān wàn/
Forty Thousand. Chinese character: 四萬 /sì wàn/
Fifty Thousand. Chinese character: 伍萬 /wǔ wàn/
Sixty Thousand. Chinese character: 六萬 /liù wàn/
Seventy Thousand. Chinese character: 七萬 /qī wàn/
Eighty Thousand. Chinese character: 八萬 /bā wàn/
Ninety Thousand. Chinese character: 九萬 /jiǔ wàn/