Buggy python submission (verdict: Runtime Error):
raw = raw_input().split()                                                                              
a = int(raw[0])                                                                                        
b = int(raw[1])                                                                                        
c = int(raw[2])                                                                                        
d = int(raw[3])                                                                                        
e = int(raw[4])                                                                                        
k = int(raw[5])                                                                                        
                                                                                                       
if b - a <= k or c - b <= k or d - c <= k or d - e <= k:                                               
    print 'Yay!'                                                                                       
else:                                                                                                  
    print ':(' 

Fixed submission:
raw = raw_input()
a = int(raw)
raw = raw_input()                                  
b = int(raw)
raw = raw_input()                                  
c = int(raw)
raw = raw_input()                                  
d = int(raw)
raw = raw_input()                                  
e = int(raw)
raw = raw_input()                                  
k = int(raw)
                                                                                                       
if e - a > k:
    print ':('
else:                                                                                                  
    print 'Yay!'

Buggy python submission (verdict: Runtime Error):
raw = raw_input().split()                                                                              |a = int(raw[0])                                                                                       
a = int(raw[0])                                                                                        |b = int(raw[1])                                                                                       
b = int(raw[1])                                                                                        |c = int(raw[2])                                                                                       
c = int(raw[2])                                                                                        |k = int(raw[3])                                                                                       
d = int(raw[3])                                                                                        |                                                                                                      
e = int(raw[4])                                                                                        |m = 1000000000000000000                                                                               
k = int(raw[5])                                                                                        |                                                                                                      
                                                                                                       |# a -b                                                                                                
if b - a <= k or c - b <= k or d - c <= k or d - e <= k:                                               |# b+c - (a+c) = b - a                                                                                 
    print 'Yay!'                                                                                       |def recursion(a,b,c, k, i):                                                                           
else:                                                                                                  |    if i < k:                                                                                         
    print ':('

Fixed submission:
raw = raw_input()
a = int(raw)
raw = raw_input()                                  
b = int(raw)
raw = raw_input()                                  
c = int(raw)
raw = raw_input()                                  
d = int(raw)
raw = raw_input()                                  
e = int(raw)
raw = raw_input()                                  
k = int(raw)
                                                                                                       
if e - a > k:
    print ':('
else:                                                                                                  
    print 'Yay!'