Baltic OI '03 P5 - Lamps
View as PDFBaltic Olympiad in Informatics: 2003 Day 2, Problem 2
There is a castle with a circular main hall. There are  lamps numbered from 
 to 
 on the wall of the hall. Each of the lamps can be either on or off. At each second the lamp number 
 changes its state if the lamp number 
 is on, except the lamp number 
 changes its state if the lamp number 
 is on.
Your task is, given the initial states of all lamps at some moment, to find their states after  seconds.
Input Specification
The first line of the input contains two integers  
 and 
 
. The next 
 lines contain the initial states of the lamps, starting with the lamp number 
. A line containing 
 means that the lamp is off and 
 means that the lamp is on.
Output Specification
The output must contain exactly  lines describing the states of the lamps after 
 seconds, starting with the lamp number 
.
Sample Input
3 1
0
0
1
Sample Output
0
1
1
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