1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1