while True:
try:
[n1,n2]=[int(i) for i in input().split()]
s=[int(j) for j in input().split()]
s.sort()
print(' '.join(map(str,s[:n2])))
except:
break
#注意输入与输出的格式 
while True:
try:
[n1,n2]=[int(i) for i in input().split()]
s=[int(j) for j in input().split()]
s.sort()
print(' '.join(map(str,s[:n2])))
except:
break
#注意输入与输出的格式