code1
start,end=map(int,input().split())
colcul=[pow(2,i) for i in range(start,end+1) if 1<=start<20 and 10<=end<30]
colcul.pop(1)
colcul.pop(-2)
print(colcul)INFO
start,end=map(int,input().split())
colcul=[pow(2,i) for i in range(start,end+1) if 1<=start<20 and 10<=end<30]
colcul.pop(1)
colcul.pop(-2)
print(colcul)