import os, sys
from io import IOBase, BytesIO
py2 = round(0.5)
if py2:
    from future_builtins import ascii, filter, hex, map, oct, zip
    range = xrange
BUFSIZE = 8192
class FastIO(BytesIO):
    newlines = 0
 
    def __init__(self, file):
        self._file = file
        self._fd = file.fileno()
        self.writable = "x" in file.mode or "w" in file.mode
        self.write = super(FastIO, self).write if self.writable else None
 
    def _fill(self):
        s = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
        self.seek((self.tell(), self.seek(0,2), super(FastIO, self).write(s))[0])
        return s
 
    def read(self):
        while self._fill(): pass
        return super(FastIO,self).read()
 
    def readline(self):
        while self.newlines == 0:
            s = self._fill(); self.newlines = s.count(b"\n") + (not s)
        self.newlines -= 1
        return super(FastIO, self).readline()
 
    def flush(self):
        if self.writable:
            os.write(self._fd, self.getvalue())
            self.truncate(0), self.seek(0)
 
class IOWrapper(IOBase):
    def __init__(self, file):
        self.buffer = FastIO(file)
        self.flush = self.buffer.flush
        self.writable = self.buffer.writable
        if py2:
            self.write = self.buffer.write
            self.read = self.buffer.read
            self.readline = self.buffer.readline
        else:
            self.write = lambda s:self.buffer.write(s.encode('ascii'))
            self.read = lambda:self.buffer.read().decode('ascii')
            self.readline = lambda:self.buffer.readline().decode('ascii')
 
 
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip('\r\n')
 
# Cout implemented in Python
import sys
class ostream:
    def __lshift__(self,a):
        sys.stdout.write(str(a))
        return self
cout = ostream()
endl = '\n'
n=int(input())
from collections import deque
tr=[[] for i in range(n)]
gm=[]
for i in range(n-1):
	u,v=map(int,input().split())
	tr[u-1].append(v-1)
	tr[v-1].append(u-1)
	gm.append((u-1,v-1))

c=[]
lab={}
p={}
g=0
for i in range(n):
	if len(tr[i])==1:
		c.append(i)
		lab[i]=g
		p[i]=-g-1
		g+=1


r=deque(c)
v=[False for i in range(n)]
for i in c:v[i]=True
while r:
	x=r.popleft()
	for j in tr[x]:
		if v[j]:continue
		else:
			v[j]=True
			p[j]=x
			r.append(j)
			lab[j]=g
			g+=1

for u,v in gm:
	if p[u]<0:print(lab[u])
	elif p[v]<0:print(lab[v])
	elif p[u]==v:print(lab[v] if lab[v]<n-1 else 0)
	else:print(lab[u] if lab[u]<n-1 else 0)
