Print all the integers that satisfies the following in ascending order:    * Among the integers between A and B (inclusive), it is either within the K smallest integers or within the K largest integers.
a,b,k=map(int, input().split())
if (b-a)/2<=k:
    for i in range(b-a+1):
        print(a+i)
else:
    for i in range(k):
        print(a+i)
    for i in range(k):
        print(b-i)

a,b,k=map(int, input().split())
if (b-a+1)/2<=k:
    for i in range(b-a+1):
        print(a+i)
else:
    for i in range(k):
        print(a+i)
    for i in range(k):
        print(b-k+1+i)
