class MonkeyStatus:

    def __init__(self, n):
        self.par = [i for i in range(n)]
        self.size = [1 for i in range(n)]

    def find(self, x):
        if self.par[x] == x:
            return x
        else:
            return self.find(self.par[x])

    def unite(self, x, y):        
        x = self.find(x)
        y = self.find(y)
        if x == y:
            return       
        if self.size[x] > self.size[y]:
            self.par[y] = x
            self.size[x] += self.size[y]
        elif self.size[x] < self.size[y]:
            self.par[x] = y
            self.size[y] += self.size[x]
        elif x > y:
            self.par[x] = y
            self.size[y] += self.size[x]
        else:
            self.par[y] = x
            self.size[x] += self.size[y]

N, M = map(int, input().split())
mStatus = MonkeyStatus(N)

for _ in range(M):
    a, b = map(int, input().split())
    mStatus.unite(a - 1, b - 1)

for i in range(N):
    print(mStatus.find(i) + 1)