qyliang/CodeNanoFix huggingface dataset:
Buggy code:
# coding: utf-8
n = int(input())
s = input()
ans = 0

for i in range(1000):
    tmp = str('{:03}'.format(i))
    s0 = s.find(tmp[0])
    if s0 == -1:
        continue
    else:
        s1 = s.find(tmp[1], s0 + 1)
        if s1 == -1:
            continue
        else:
            s2 = s.find(tmp[2], s1 + 1)
            if s2 == -1:
                continue
            else:
                print(i, tmp,s0, s1, s2)
                ans += 1
print(ans)


Fixed code:
# coding: utf-8
n = int(input())
s = input()
ans = 0

for i in range(1000):
    tmp = str('{:03}'.format(i))
    s0 = s.find(tmp[0])
    if s0 == -1:
        continue
    else:
        s1 = s.find(tmp[1], s0 + 1)
        if s1 == -1:
            continue
        else:
            s2 = s.find(tmp[2], s1 + 1)
            if s2 == -1:
                continue
            else:
                ans += 1
print(ans)
Buggy code:
import collections

n = int(input())
s_list = list(input())

ans = 0
for i in range(1000):
    key = str(i).zfill(3)
    k = 0
    t = key[k]
    for s in s_list:
        if t == s[j]:
            k += 1
            if k == 3:
                ans += 1
                break
            t = key[k]
print(ans)


Fixed code:
n = int(input())
s_list = list(input())

ans = 0
for i in range(1000):
    key = str(i).zfill(3)
    k = 0
    t = key[k]
    for s in s_list:
        if t == s:
            k += 1
            if k == 3:
                ans += 1
                break
            t = key[k]
print(ans)
Buggy code:
import re
import sys
import math
import itertools
import bisect
from copy import copy
from collections import deque,Counter
from decimal import Decimal
import functools
def v(): return input()
def k(): return int(input())
def S(): return input().split()
def I(): return map(int,input().split())
def X(): return list(input())
def L(): return list(input().split())
def l(): return list(map(int,input().split()))
def lcm(a,b): return a*b//math.gcd(a,b)
sys.setrecursionlimit(10 ** 6)
mod = 10**9+7
cnt = 1
ans = 0
inf = float("inf")
al = "abcdefghijklmnopqrstuvwxyz"
AL = al.upper()

n = k()
s = v()

s1,s2,s3 = set(),set(),set()
for x in S:
    for z in s2:
        s3.add(z+x)
    for y in s1:
        s2.add(y+x)
    s1.add(x)
print(len(s3))



Fixed code:
import re
import sys
import math
import itertools
import bisect
from copy import copy
from collections import deque,Counter
from decimal import Decimal
import functools
def v(): return input()
def k(): return int(input())
def S(): return input().split()
def I(): return map(int,input().split())
def X(): return list(input())
def L(): return list(input().split())
def l(): return list(map(int,input().split()))
def lcm(a,b): return a*b//math.gcd(a,b)
sys.setrecursionlimit(10 ** 6)
mod = 10**9+7
cnt = 1
ans = 0
inf = float("inf")
al = "abcdefghijklmnopqrstuvwxyz"
AL = al.upper()

n = k()
s = v()

s1,s2,s3 = set(),set(),set()
for x in s:
    for z in s2:
        s3.add(z+x)
    for y in s1:
        s2.add(y+x)
    s1.add(x)
print(len(s3))
Buggy code:
n = int(input())
s = input()
cnt = 0
for i in range(10):
    a = s.find(i)
    if a == -1:
        continue
    for j in range(10):
        b = s.find(j,a+1)
        if b == -1:
            continue        
        for k in range(10):
            if str(k) in s[b+1::]:
                cnt += 1
print(cnt

Fixed code:
n = int(input())
s = input()
cnt = 0
for i in range(10):
    a = s.find(str(i))
    if a == -1:
        continue
    for j in range(10):
        b = s.find(str(j),a+1)
        if b == -1:
            continue        
        for k in range(10):
            if str(k) in s[b+1::]:
                cnt += 1
print(cnt)
Buggy code:
import sys
input = sys.stdin.readline

n = int(input())
s = input()

count = 0

ls_si = []
for i in range(n-2):
    print("i={}".format(i))
    if s[i] in ls_si:
        pass
    else:
        ls_si.append(s[i])
        ls_sj = []
        for j in range(i+1,n-1):
            if s[j] in ls_sj:
                pass
            else:
                ls_sj.append(s[j])
                # ls = s[j+1:-1]
                # st = set(ls)
                # l = len(st)
                # print(ls)
                # print(st)
                # print(l)
                count += len(set(list(s[j+1:-1])))

# print(ls_si)
# print(ls_sj)
print(count)

Fixed code:
import sys
input = sys.stdin.readline

n = int(input())
s = input()

count = 0

ls_si = []
for i in range(n-2):
    # print("i={}".format(i))
    if s[i] in ls_si:
        pass
    else:
        ls_si.append(s[i])
        ls_sj = []
        for j in range(i+1,n-1):
            if s[j] in ls_sj:
                pass
            else:
                ls_sj.append(s[j])
                # ls = s[j+1:-1]
                # st = set(ls)
                # l = len(st)
                # print(ls)
                # print(st)
                # print(l)
                count += len(set(list(s[j+1:-1])))

# print(ls_si)
# print(ls_sj)
print(count)
Buggy code:
n=int(input())
s=list(input())
d={}
ans=0
for x in range(n-2):
  if s[x] not in d:
    d[s[x]]=0
    for y in range(x+1,n-1):
      if int(s[x]+s[y]) not in d:
        d[int(s[x]+s[y])]=0
        for z in range(y+1,n):
          if int(s[x]+s[y]+s[z]) not in d:
            d[int(s[x]+s[y]+s[z])]=0
            ans+=1
    
print(ans)   

Fixed code:
n=int(input())
s=list(input())
d={}
ans=0
for x in range(n-2):
  if s[x] not in d:
    d[s[x]]=0
    for y in range(x+1,n-1):
      if (s[x]+s[y]) not in d:
        d[(s[x]+s[y])]=0
        for z in range(y+1,n):
          if (s[x]+s[y]+s[z]) not in d:
            d[(s[x]+s[y]+s[z])]=0
            ans+=1
    
print(ans)
Buggy code:
n=int(input())
s=input()
t=0
for i in range(10):
  for a in range(n):
    if s[a]==str(i):
      for j in range(10):
        for b in range(a+1,n-1)[::-1]:
          if s[b]==str(j):
            t+=len(set(list(s[a+1:b])))
print(t)

Fixed code:
n=int(input())
s=input()
t=0
for i in range(10):
  for a in range(n):
    if s[a]==str(i):
      for j in range(10):
        for b in range(a+1,n)[::-1]:
          if s[b]==str(j):
            t+=len(set(list(s[a+1:b])))
            break
      break
print(t)
Buggy code:
n = int(input())
s = input()
index = 0
cnt = 0
for i in range(0, 1000):
    if i < 10:
        value = '00' + str(i)
    elif i < 100:
        value = '0' + str(i)
    else:
        value = str(i)
    print(value)
    
    for j in s:
        if value[index] == j:
            index += 1

        if index == 3:
            cnt += 1
            index = 0
            break
    index = 0

print(cnt)


Fixed code:
n = int(input())
s = input()
index = 0
cnt = 0
for i in range(0, 1000):
    if i < 10:
        value = '00' + str(i)
    elif i < 100:
        value = '0' + str(i)
    else:
        value = str(i)

    for j in s:
        if value[index] == j:
            index += 1

        if index == 3:
            cnt += 1
            index = 0
            break
    index = 0

print(cnt)
Buggy code:
n = int(input())
s = input()

before = [[-1] * 10]

for i in range(n):
  c = s[i]
  num = int(c)
  hoge = before[-1][::]
  hoge[num] = i
  before.append(hoge)

for i in range(10):
  now = before[-1][i]
  if now == -1:
    continue
  for j in range(10):
    now2 = before[now][j]
    if now2 == -1:
      continue
    for k in range(10):
      now3 = before[now2][k]
      if now3 == -1:
        continue
      ans += 1
print(ans)

Fixed code:
n = int(input())
s = input()

before = [[-1] * 10]

for i in range(n):
  c = s[i]
  num = int(c)
  hoge = before[-1][::]
  hoge[num] = i
  before.append(hoge)
ans = 0
for i in range(10):
  now = before[-1][i]
  if now == -1:
    continue
  for j in range(10):
    now2 = before[now][j]
    if now2 == -1:
      continue
    for k in range(10):
      now3 = before[now2][k]
      if now3 == -1:
        continue
      ans += 1
print(ans)
Buggy code:
n = int(input())
S = input()

result = 0
for i in range(10):
  if str(i) in S:
    T = S[S.index(str(i)):]

    for j in range(10):
      if str(j) in T:
        U = T[T.index(str(j)):]

        for k in range(10):
          if str(k) in U:
            result += 1

print(result)



Fixed code:
n = int(input())
S = input()

result = 0
for i in range(10):
  if str(i) in S:
    T = S[S.index(str(i))+1:]

    for j in range(10):
      if str(j) in T:
        U = T[T.index(str(j))+1:]

        for k in range(10):
          if str(k) in U:
            result += 1

print(result)
Buggy code:

N = int(input())
S = input()

S = [int(s) for s in S]


res = 0
for q in product(range(10), repeat=3):
    i = 0
    for s in S:
        if s==q[i]:
            if i==2:
                res += 1
                break
            else:
                i+=1
print (res)

Fixed code:
from itertools import product

N = int(input())
S = input()
S = [int(s) for s in S]


res = 0
for q in product(range(10), repeat=3):
    i = 0
    for s in S:
        if s==q[i]:
            if i==2:
                res += 1
                break
            else:
                i+=1
print (res)
Buggy code:
n=int(input())
s=input()
cnt=0
for i in range(1000):
  c = [i/100,(i/10)%10,i%10]
  f=0
  for j in range(n):
    if(s[j]==c[f]): f++
    if(f==3):break
  if(f==3): cnt+=1
print(cnt)


Fixed code:
n = int(input())
s = input()
cnt = 0
for i in range(1000):
    c = [str(i // 100), str((i // 10) % 10), str(i % 10)]
    t = 0
    for j in range(n):
        if s[j]==c[t]:
            t+=1
        if t==3:
            cnt+=1
            break
print(cnt)
Buggy code:
n = int(input())
s = list(map(int,input()))

def nc(n,s,i,j,k):
    c1 = -1
    for l in range(n):
        if s[l] == i:
            c1 = l
            break
    if c1 == -1:
        return 0
    c2 = -1
    for l in range(c1+1,n):
        if s[l] == j:
            c2 = l
            break
    if c2 == -1:
        return 0
    c3 = -1
    for l in range(c2+1,n):
        if s[l] == k:
            c3 = l
            break
    if c3 == -1:
        return 0
    print(i,j,k)
    return 1

c = 0
for i in range(10):
        for j in range(10):
            for k in range(10):
                c += nc(n,s,i,j,k)



print(c)


Fixed code:
n = int(input())
s = list(map(int,input()))

def nc(n,s,i,j,k):
    c1 = -1
    for l in range(n):
        if s[l] == i:
            c1 = l
            break
    if c1 == -1:
        return 0
    c2 = -1
    for l in range(c1+1,n):
        if s[l] == j:
            c2 = l
            break
    if c2 == -1:
        return 0
    c3 = -1
    for l in range(c2+1,n):
        if s[l] == k:
            c3 = l
            break
    if c3 == -1:
        return 0
    return 1

c = 0
for i in range(10):
        for j in range(10):
            for k in range(10):
                c += nc(n,s,i,j,k)



print(c)
Buggy code:
N = int(input())
S = str(input())

S10 = [0 for i in range(10)]
S100 = [list(S10) for i in range(10)]
S1000 =[list([list(S10) for i in range(10)]) for i in range(10)]

for n in S:
    for i in range(10):
        for j in range(10):
            if list(S100)[i][j] == 1:
                S1000[i][j][int(n)] = 1
        if list(S10)[i] == 1:
            S100[i][int(n)] = 1
    S10[int(n)] = 1
    print(S10,S100,S1000)
    


ans = 0
for i in range(10):
    for j in range(10):
        for k in range(10):
            if S1000[i][j][k] == 1:
                ans += 1

print(ans)


Fixed code:
N = int(input())
S = str(input())

S10 = [0 for i in range(10)]
S100 = [list(S10) for i in range(10)]
S1000 =[list([list(S10) for i in range(10)]) for i in range(10)]

for n in S:
    for i in range(10):
        for j in range(10):
            if list(S100)[i][j] == 1:
                S1000[i][j][int(n)] = 1
        if list(S10)[i] == 1:
            S100[i][int(n)] = 1
    S10[int(n)] = 1
    


ans = 0
for i in range(10):
    for j in range(10):
        for k in range(10):
            if S1000[i][j][k] == 1:
                ans += 1

print(ans)
Buggy code:
from string import digits

n = int(input())
s = input()

cnt = 0
for i in digits:
    x = s.find(i)
    if x == -1:
        continue
    for j in digits:
        y = s.find(j, x + 1)
        if y == -1:
            continue
        for k in digits:
            z = s.find(k, y + 1)
            if z == -1:
                continue
            cnt += 1

    print(cnt)

Fixed code:
from string import digits

n = int(input())
s = input()

cnt = 0
for i in digits:
    x = s.find(i)
    if x == -1:
        continue
    for j in digits:
        y = s.find(j, x + 1)
        if y == -1:
            continue
        for k in digits:
            z = s.find(k, y + 1)
            if z == -1:
                continue
            cnt += 1

print(cnt)
Buggy code:

N=int(input())
S=list(input())
numlist=range(1000)
ans=0

for i in numlist:
    num=str(i)
    if len(num)==1:
        num="00"+num
    if len(num)==2:
        num="0"+num
    if num[0] in S[:N-1]:
        num1=S.index(num[0])
        if num[1] in S[num1+1:N-1]:
            S2=S[num1+1:N-1]
            num2=S2.index(num[1])+num1+1
            if num[2] in S[num2+1:]:
                ans+=1
                print(i)
print(ans)

Fixed code:

N=int(input())
S=list(input())
numlist=range(1000)
ans=0

for i in numlist:
    num=str(i)
    if len(num)==1:
        num="00"+num
    if len(num)==2:
        num="0"+num
    if num[0] in S[:N-1]:
        num1=S.index(num[0])
        if num[1] in S[num1+1:N-1]:
            S2=S[num1+1:N-1]
            num2=S2.index(num[1])+num1+1
            if num[2] in S[num2+1:]:
                ans+=1
print(ans)
Buggy code:
n = int(input())
s = input()
lst = [0] * 1000
for i in range(1000):
    if len(str(i)) == 1:
        tmp = '00' + str(i)
        lst[i] = tmp
    elif len(str(i)) == 2:
        tmp = '0' + str(i)
        lst[i] = tmp
    else:
        lst[i] = str(i)

cnt = 0
for v in lst:
    id_1 = s.find(v[0])
    if id_1 == -1:
        continue
    id_2 = s.find(v[1], id_1 + 1)
    if id_2 == -1:
        continue
    id_3 = s.find(v[2], id_2 + 1)
    if id_3 == -1:
        continue
    cnt += 1

Fixed code:
n = int(input())
s = input()
lst = [0] * 1000
for i in range(1000):
    if len(str(i)) == 1:
        tmp = '00' + str(i)
        lst[i] = tmp
    elif len(str(i)) == 2:
        tmp = '0' + str(i)
        lst[i] = tmp
    else:
        lst[i] = str(i)

cnt = 0
for v in lst:
    id_1 = s.find(v[0])
    if id_1 == -1:
        continue
    id_2 = s.find(v[1], id_1 + 1)
    if id_2 == -1:
        continue
    id_3 = s.find(v[2], id_2 + 1)
    if id_3 == -1:
        continue
    cnt += 1

print(cnt)
Buggy code:
""" tutorial06
    https://atcoder.jp/contests/sumitrust2019/tasks/sumitb2019_d
"""
import sys
import math
from functools import reduce

def readString():
    return sys.stdin.readline()

def readInteger():
    return int(readString())

def main(N, S):
    """ main
    """
    count = 0
    skip1 = []
    skip2 = []
    skip3 = []

    for i in range(0, N):
        if S[i] in skip1:
            continue
        skip1.append(S[i])
        for j in range(i+1, N):
            if S[j] in skip2:
                continue
            skip2.append(S[j])
            for k in range(j+1, N):
                if S[k] in skip3:
                    continue
                skip3.append(S[k])
                print(S[i]+S[j]+S[k])
                count += 1
            skip3 = []
        skip2 = []

    return count

if __name__ == "__main__":
    _N = readInteger()
    _S = readString()

    print(main(_N, _S))

Fixed code:
""" tutorial06
    https://atcoder.jp/contests/sumitrust2019/tasks/sumitb2019_d
"""
import sys
import math
from functools import reduce

def readString():
    return sys.stdin.readline()

def readInteger():
    return int(readString())

def main(N, S):
    """ main
    """
    count = 0
    skip1 = []
    skip2 = []
    skip3 = []

    for i in range(0, N):
        if S[i] in skip1:
            continue
        skip1.append(S[i])
        for j in range(i+1, N):
            if S[j] in skip2:
                continue
            skip2.append(S[j])
            for k in range(j+1, N):
                if S[k] in skip3:
                    continue
                skip3.append(S[k])
                count += 1
            skip3 = []
        skip2 = []

    return count

if __name__ == "__main__":
    _N = readInteger()
    _S = readString()

    print(main(_N, _S))
Buggy code:
N = int(input())
S = list(map(int,list(input())))
S_riv=S[::-1]
l_lis=[0]*N
r_lis=[0]*N
mat=([0 for j in range(10)])
l_set=set([])
r_set=set([])
for i,s in enumerate(S):
  l_lis[i]=l_set.copy()
  l_set.add(s)
  
for i,s in enumerate(S_riv):
  r_lis[i]=r_set.copy()
  r_set.add(s)
  
r_lis.reverse()
ans=0
for i,s in enumerate(S):
  length=len(l_lis[i])
  ans+=(length-mat[s])*len(r_lis[i])
  mat[s]=length
  


Fixed code:
N = int(input())
S = list(map(int,list(input())))
S_riv=S[::-1]
l_lis=[0]*N
r_lis=[0]*N
mat=([set([])for j in range(10)])
l_set=set([])
r_set=set([])
for i,s in enumerate(S):
  l_lis[i]=l_set.copy()
  l_set.add(s)
  
for i,s in enumerate(S_riv):
  r_lis[i]=r_set.copy()
  r_set.add(s)
  
r_lis.reverse()
ans=0
for i,s in enumerate(S):
  ans+=len(l_lis[i]-mat[s])*len(r_lis[i])
  mat[s]=l_lis[i]
  
print(ans)
Buggy code:
n = int(input())
s = input()


ans =0

for i in range(10):
    if str(i) in s:
        t = s[s.index(str(i))+1:]
        for j in range(10):
            if str(j) in s:
                u = t[t.index(str(j))+1:]
                for k in range(10):
                    if str(k) in u:
                        ans += 1
print(ans)


Fixed code:
n = int(input())
s = input()
ans =0
for i in range(10):
    if str(i) in s:
        t = s[s.index(str(i))+1:]
        for j in range(10):
            if str(j) in t:
                u = t[t.index(str(j))+1:]
                for k in range(10):
                    if str(k) in u:
                        ans += 1
print(ans)
Buggy code:
n = int(input())
s = input()
res = 0

lst = [[] for _ in range(10)]
for i in range(n):
    lst[int(s[i])].append(i)


done = []
cnt = 0
for i in range(1000):
    tmp = str(i).rjust(3, '0')
    n1,n2,n3 = int(tmp[0]), int(tmp[1]), int(tmp[2])
    mi = -1
    mx = -1
    if len(lst[n1])!=0:
        mi = lst[n1][0]
    if len(lst[n3])!=0:
        mx = lst[n3][-1]
    
    if mi>0 and mx>0:
        for y in lst[n2]:
            if mi<y<mx:
                done.append(tmp)
    else:
        continue
print(len(set(done)))

Fixed code:
n = int(input())
s = input()
res = 0

lst = [[] for _ in range(10)]
for i in range(n):
    lst[int(s[i])].append(i)

done = []
cnt = 0
for i in range(1000):
    tmp = str(i).rjust(3, '0')
    n1,n2,n3 = int(tmp[0]), int(tmp[1]), int(tmp[2])
    mi = -1
    mx = -1
    if len(lst[n1])!=0:
        mi = lst[n1][0]
    if len(lst[n3])!=0:
        mx = lst[n3][-1]
    
    if mi>=0 and mx>=0:
        for y in lst[n2]:
            if mi<y<mx:
                done.append(tmp)
    else:
        continue
print(len(set(done)))
Buggy code:
import itertools

N = int(input())
S = input()
S = [int(x) for x in S]

left_index = [[-1] * (N+1) for _ in range(10)]

for i,x in enumerate(S,1):
	for j in range(10):
		left_index[j][i] = left_index[j][i-1]
	left_index[x][i] = i

for x in range(10):
	print(left_index[x])


answer = 0
for a,b,c in itertools.product(range(10),repeat=3):
	i = N
	bl = True
	for x in [a,b,c]:
		i = left_index[x][i] - 1
		if i < -1:
			bl = False
			break
	if bl:
		answer += 1

print(answer)

Fixed code:
import itertools

N = int(input())
S = input()
S = [int(x) for x in S]

left_index = [[-1] * (N+1) for _ in range(10)]

for i,x in enumerate(S,1):
	for j in range(10):
		left_index[j][i] = left_index[j][i-1]
	left_index[x][i] = i


answer = 0
for a,b,c in itertools.product(range(10),repeat=3):
	i = N
	bl = True
	for x in [a,b,c]:
		i = left_index[x][i] - 1
		if i < -1:
			bl = False
			break
	if bl:
		answer += 1

print(answer)
Buggy code:
n = int(input())
s = input()
ans = 0
 
pin = [str(i).zfill(3) for i in range(1000)]
 
for i in pin:
    idx = -1
    for j in i:
        idx = s.find(j,idx+1)
        if idx < 0:
            break
    else:
        print(j)
        ans += 1
 
print(ans)

Fixed code:
 
n = int(input())
s = input()
ans = 0
 
pin = [str(i).zfill(3) for i in range(1000)]
 
for i in pin:
    idx = -1
    for j in i:
        idx = s.find(j,idx+1)
        if idx < 0:
            break
    else:
        ans += 1
 
print(ans)
Buggy code:
n = int(input())
s = input()

cnt = 0
for i in range(1000):
    
    t = str(i)
    u = '0'*(3-len(t))+t
    
    j = 0
    p = u[0]
    for x in s:
        if x == p:
            j += 1
            if j == 3:
                cnt += 1
                break
            p = u[j]
            
print(ans)

Fixed code:
n=int(input())
s=input()

ans=0
for i in range(1000):
  t=str(i)
  u="0"*(3-len(t))+t
  j=0
  exi=0
  p=u[0]
  for x in s:
    if x==p:
      j+=1
      if j==3:
        ans+=1
        break
      p=u[j]
    
print(ans)
Buggy code:
N=int(input())
S=list(input())

T=[]
c=0
for i in range(10):
  T=S
  i=str(i)
  if i in T[:N-2]:
    indx_i=T.index(i) 
    for j in range(10):
      j=str(j)
      if j in T[indx_i+1:N-1]:
        indx_j=indx_i+T[indx_i+1:].index(j)+1
        for k in range(10):
          k=str(k)
          if k in T[indx_j+1:]:
            c+=1
            print(i,j,k)

print(c)

Fixed code:
N=int(input())
S=list(input())

T=[]
c=0
for i in range(10):
  T=S
  i=str(i)
  if i in T[:N-2]:
    indx_i=T.index(i) 
    for j in range(10):
      j=str(j)
      if j in T[indx_i+1:N-1]:
        indx_j=indx_i+T[indx_i+1:].index(j)+1
        for k in range(10):
          k=str(k)
          if k in T[indx_j+1:]:
            c+=1

print(c)
Buggy code:
N = int(input())
S = input()

ans = 0

for i in range(10):
    a = S.find(str(i))
    if -1 == a:
        continue
    for j in range(10):
        b = S.find(str(j), a + 1)
        if -1 == b:
            continue
        for k in range(10):
            c = S.find(str(k), b + 1)
            if -1 == c:
                continue
            ans += 1
            print(''.join(map(str, [i, j, k])))

print(ans)

Fixed code:
N = int(input())
S = input()

ans = 0

for i in range(10):
    a = S.find(str(i))
    if -1 == a:
        continue
    for j in range(10):
        b = S.find(str(j), a + 1)
        if -1 == b:
            continue
        for k in range(10):
            c = S.find(str(k), b + 1)
            if -1 == c:
                continue
            ans += 1
            # print(''.join(map(str, [i, j, k])))

print(ans)
Buggy code:
n = int(input())
numbers = input()

lst = []
lst2 = []
lst3 = []
for i in range(n):
  pin = ''
  if numbers[i] not in lst:
    pin += numbers[i]
    lst.append(pin)
    for j in range(i+1, n):
      pin += numbers[j]
      if pin not in lst2:
        lst2.append(pin)
        for k in range(j+1, n):
          pin += numbers[k]
          if pin not in lst3:
            lst3.append(pin)
          pin = pin[0] + pin[1]
      pin = pin[0]
    if ('0' in lst) and ('1' in lst) and ('2' in lst) and ('3' in lst) and ('4' in lst) and ('5' in lst) and ('6' in lst) and ('7' in lst) and ('8' in lst) and ('9' in lst):
      break
print(lst2[:][1])
print(len(lst3))


Fixed code:
n = int(input())
numbers = input()

lst = []
ans = []
for i in range(n):
  pin = ''
  if numbers[i] not in lst:
    pin += numbers[i]
    lst.append(pin)
    lst2 = []
    for j in range(i+1, n):
      pin += numbers[j]
      if pin[1] not in lst2:
        lst2.append(pin[1])
        lst3 = []
        for k in range(j+1, n):
          pin += numbers[k]
          if pin[2] not in lst3:
            lst3.append(pin[2])
            ans.append(pin)
          if ('0' in lst3) and ('1' in lst3) and ('2' in lst3) and ('3' in lst3) and ('4' in lst3) and ('5' in lst3) and ('6' in lst3) and ('7' in lst3) and ('8' in lst3) and ('9' in lst3):
            break
          pin = pin[0] + pin[1]
      if ('0' in lst2) and ('1' in lst2) and ('2' in lst2) and ('3' in lst2) and ('4' in lst2) and ('5' in lst2) and ('6' in lst2) and ('7' in lst2) and ('8' in lst2) and ('9' in lst2):
        break
      pin = pin[0]
    if ('0' in lst) and ('1' in lst) and ('2' in lst) and ('3' in lst) and ('4' in lst) and ('5' in lst) and ('6' in lst) and ('7' in lst) and ('8' in lst) and ('9' in lst):
      break
print(len(ans))