L = ["zero","one","two","three","four","five","six","seven","eight","nine"]
M,N = map(int,input().split())
D = []
for i in range(M,N+1):
k = str(i)
s = ""
for j in k:
s += L[int(j)]
D.append([i,s])
D.sort(key = lambda t : t[1])
for i in range(len(D)):
print(D[i][0], end = "")
if i % 10 == 9:
print()
else:
print(end = " ")