数字之美18+1=9128+2=981238+3=98712348+4=9876123458+5=987651234568+6=98765412345678+7=9876543123456788+8=987654321234567898+9=98765432119+2=11129+3=1111239+4=111112349+5=1111112345916=1111111234569+7=111111112345679+8=11111111123456789+9=1111111111234567899+10=1111111111199+7=88989+6=8889879+5=888898769+4=88888987659+3=8888889876549+2=888888898765439+1=88888888987654329+0=88888888811=11111=121111111=1232111111111=12343211111111111=123454321111111111111=1234565432111111111111111=l2345676543211111111111111111=123456787654321111111111111111111=12345678987654321
