Euclid's Game

Time Limit: 1500 ms Memory Limit: 10000 KiB

Problem Description


Two players, Stan and Ollie, play, starting with two natural numbers. Stan, the first player, subtracts any positive multiple of the lesser of the two numbers from the greater of the two numbers, provided that the resulting number must be nonnegative. Then Ollie, the second player, does the same with the two resulting numbers, then Stan, etc., alternately, until one player is able to subtract a multiple of the lesser number from the greater to reach 0, and thereby wins. For example, the players may start with (25,7): 

 an Stan wins.


The input consists of a number of lines. Each line contains two positive integers giving the starting two numbers of the game. Stan always starts.


For each line of input, output one line saying either Stan wins or Ollie wins assuming that both of them play perfectly. The last line of input contains two zeroes and should not be processed.

Sample Input

34 12
15 24
0 0

Sample Output

Stan wins
Ollie wins


nkoj1200 有链接提示的题目请先去链接处提交程序,AC后提交到SDUTOJ中,以便查询存档。


28 September, 2002 - Waterloo local contest