【HDU】[1040]As Easy As A+B

【HDU】[1048]The Hardest Problem Ever

【HDU】[1051]Wooden Sticks

【HDU】[1052]Tian Ji -- The Horse Racing

【HDU】[1060]Leftmost Digit

【HDU】[1062]Text Reverse

【HDU】[1070]Milk

【HDU】[1084]What Is Your Grade?

【HDU】[1087]Super Jumping! Jumping! Jumping!

【HDU】[1089]A+B for Input-Output Practice (I)