n, m = map(int, input().split())

a = [i for i in range(1, n + 1)]
l = []
for i in range(m):
    xp, yp, xq, yq = map(int, input().split())
    l.append([xp, yp, xq, yq])


l.sort(key = lambda x: x[1])

for i in range(m):
    x1, x2 = l[i][0], l[i][2]
    a[x1 - 1], a[x2 - 1] = a[x2 - 1], a[x1 - 1]

for i in range(n):
    print(a.index(i + 1) + 1)