def line_ints(): return list(map(int, input().split()))

n, m = line_ints()

hunters = list(range(1, n+1))

for _ in range(m):
    xp, yp, xq, yq = line_ints()

    hunters[xp-1], hunters[xq-1] = hunters[xq-1], hunters[xp-1]

n_hunters = []
for i in range(len(hunters)):
    n_hunters.append((hunters[i], i+1))

for h in sorted(n_hunters):
    print(h[1])