1001 A+B Format (20)(20 分) Calculate a + b and output the sum in standard format -- that is, the dig
bywujiefromzhuoyuehonorcollegeofhangzhoudianziuniversity1001A+BFormat(20)(20分)Calculatea+bandoutputthesuminstandardformat--thatis,thedigitsmustbeseparatedintogroupsofthreebycommas