Buggy python submission (verdict: Runtime Error):
n = int(raw_input())

G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
st = [0 for i in range(n)]
dis = [0]
b = [0 for i in range(n)]

def bfs_visit(s):
    st[s] = 1
    dis[0] = 0
    for k in range(n):
      if a[s][k] == 1 and st[k] == 0:
         dis[0] += 1
         b[k] = dis[0]
         bfs_visit[k]

def main():
    s = 1
    b[1] = 0
    bfs_visit(s)
    for s in range(n):
       if i!=1 and b[i] == 0:
           b[i] = -1
    for s in range(n):
       print (s+1,b[s])

 for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
main()

    
    
   

          

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input())

G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [-1 for i in range(n)]

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1

def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1 and dis[k] == -1:
         dis[k] = dis[s] + 1
         bfs_visit(k)

for s in range(s):
    bfs_visit()
for s in range(s):
    print (s+1,dis[s])


 
 

    
    
   

          

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input())

G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [-1 for i in range(n)]
dis[0] = 0

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1

def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1 and dis[k] == -1:
         dis[k] = dis[s] + 1
         bfs_visit(k)

for s in range(s):
    bfs_visit()
for s in range(s):
    print (s+1,dis[s])


 
 

    
    
   

          

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input())
 
G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [-1 for i in range(n)]
dis[0] = 0
 
for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1 and dis[k] == -1:
         dis[k] = dis[s] + 1
         bfs_visit(k)

for s in range(n):
    bfs_visit()
for s in range(n):
    print (s+1,dis[s])
 

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input())
 
G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [1000 for i in range(n)]
dis[0] = 0

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1:
       if dis[k] > dis[s] + 1:
         dis[k] = dis[s] + 1
         bfs_visit(k)

for s in range(n):
    bfs_visit(s)
for s in range(n):
    if dis[s] == 1000:
       dis[s] = -1
for s in range(n):
    print'{0} {1}'.format(s+1, d[s])
 

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input()) 
G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [1000 for i in range(n)]
dis[0] = 0
for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1:
       if dis[k] > dis[s] + 1:
         dis[k] = dis[s] + 1
         bfs_visit(k)

for s in range(n):
    bfs_visit(s)
for s in range(n):
    if dis[s] == 1000:
       dis[s] = -1
for s in range(n):
    print'{0} {1}'.format(s+1, d[s])
 

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input()) 
G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [10000 for i in range(n)]
dis[0] = 0

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1:
        if dis[k] > dis[s] + 1:
          dis[k] = dis[s] + 1
          bfs_visit(k)

for s in range(n):
    bfs_visit(s)
for s in range(n):
    if dis[s] == 10000:
       dis[s] = -1
for s in range(n):
    print (s+1, d[s])

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input()) 

G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [99999 for i in range(n)]
dis[0] = 0


def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1:
        if dis[k] > dis[s] + 1:
          dis[k] = dis[s] + 1
          bfs_visit(k)

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 

for s in range(n):
    bfs_visit(s)
for s in range(n):
    if dis[s] == 99999:
       dis[s] = -1
for s in range(n):
    print (s+1, d[s])

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input()) 

G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [99999 for i in range(n)]

def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1:
        if dis[k] > dis[s] + 1:
          dis[k] = dis[s] + 1
          bfs_visit(k)

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
dis[0] = 0
for s in range(n):
    bfs_visit(s)
for s in range(n):
    if dis[s] == 99999:
       dis[s] = -1
for s in range(n):
    print (s+1, d[s])

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input()) 

G = [0 for i in range(n)] 
a = [[0 for i in range(n)] for j in range(n)]
dis = [99999 for i in range(n)]

def bfs_visit(s):
    for k in range(n):
      if a[s][k] == 1:
        if dis[k] > dis[s] + 1:
          dis[k] = dis[s] + 1
          bfs_visit(k)

for i in range(n):
    G = map(int, raw_input().split())
    for j in range(G[1]):
        a[G[0]-1][G[2+j]-1] = 1
 
dis[0] = 0
for s in range(n):
    bfs_visit(s)
for s in range(n):
    if dis[s] == 99999:
       dis[s] = -1
for s in range(n):
    print (s+1, d[s])

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
nn = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        d[e] = d[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Buggy python submission (verdict: Runtime Error):
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        d[e] = d[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])

Fixed submission:
n = int(raw_input())
   
dis = [99999 for i in range(n)]
G = [0 for i in range(n)]
v = [[0 for i in range(n)] for j in range(n)]
   
def BFS(s):
  for e in range(n):
    if v[s][e] == 1:
      if dis[e] > dis[s] + 1:
        dis[e] = dis[s]+1
        BFS(e)
   
for i in range(n):
  G = map(int, raw_input().split())
  for j in range(G[1]):
    v[G[0]-1][G[2+j]-1] = 1
   
dis[0] = 0
for s in range(n):
  BFS(s)
for s in range(n):
  if dis[s] == 99999:
    dis[s] = -1
for s in range(n):
  print'{0} {1}'.format(s+1, dis[s])