n, m = [int(x) for x in input().strip().split()]
boss = [x for x in range(n+1)]
piki = [1 for _ in range(n+1)]

for _ in range(m):
    a, b = [int(x) for x in input().strip().split()]
    if boss[a] == boss[b]:
        pass
    else:
        ta = boss[a]
        tb = boss[b]
        if piki[ta] > piki[tb] or (piki[ta] == piki[tb] and ta < tb):
            piki[ta] += piki[tb]
            for i in range(n+1):
                if boss[i] == tb:
                    boss[i] = ta
        else:
            piki[tb] += piki[ta]
            for i in range(n+1):
                if boss[i] == ta:
                    boss[i] = tb
for x in boss[1:]:
    print(x)