''' Purpose: exercise module aid
''' 
 
import aid 
 
# the below lines to test rotate( x ) 
 
x1 = [] 
x2 = [ 3 ] 
x3 = [ 3, 1, 4, 1, 5, 9 ] 
x4 = [ 'p', 'e', 'c', 'u', 'l', 'a', 't', 'i', 'o', 'n', 's' ]  
 
aid.rotate( x1 )     ;     print( x1 ) 
aid.rotate( x2 )     ;     print( x2 ) 
aid.rotate( x3 )     ;     print( x3 ) 
aid.rotate( x4 )     ;     print( x4 ) 
 
print() 
 
# the below lines to test rotate_k_times( x, k ) 
 
x1 = [] 
x2 = [ 3 ] 
x3 = [ 3, 1, 4, 1, 5, 9 ] 
x4 = [ 'p', 'e', 'c', 'u', 'l', 'a', 't', 'i', 'o', 'n', 's' ]  
 
aid.rotate_k_times( x1, 2 )     ;     print( x1 ) 
aid.rotate_k_times( x2, 3 )     ;     print( x2 ) 
aid.rotate_k_times( x3, 4 )     ;     print( x3 ) 
aid.rotate_k_times( x4 ,5 )     ;     print( x4 ) 
 
print() 
 
# the below lines to test common( x, y ) 
 
x1 = []                         ;     y1 = [] 
x2 = [ 3 ]                      ;     y2 = [] 
x3 = [ 1 ]                      ;     y3 = [ 3, 1, 4 ] 
x4 = [ 2, 7, 1, 8, 2, 8, 1, 8 ] ;     y4 = [ 2, 8, 4, 5, 9, ] 
 
z = aid.common( x1, y1 )        ;     print( z ) 
z = aid.common( x2, y2 )        ;     print( z ) 
z = aid.common( x3, y3 )        ;     print( z ) 
z = aid.common( x4, y4 )        ;     print( z )