qyliang/CodeNanoFix huggingface dataset:
Buggy code:

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

dp1 = [[0 for i in range(10)] for _ in range(n + 1)]
dp2 = [[0 for i in range(100)] for _ in range(n + 1)]
dp3 = [[0 for i in range(1000)] for _ in range(n + 1)]

for i in range(n):
    dp1[i + 1][int(s[i])] = 1
    for j in range(10):
        if dp1[i][j]:
            dp2[i + 1][j * 10 + int(s[i])] = 1
            dp1[i + 1][j] = 1
            print(i, j, s[i])
    for j in range(100):
        if dp2[i][j]:
            dp3[i + 1][j * 10 + int(s[i])] = 1
            dp2[i + 1][j] = 1
    for j in range(1000):
        if dp3[i][j]:
            dp3[i + 1][j] = 1

print(sum(dp3[n]))

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

dp1 = [[0 for i in range(10)] for _ in range(n + 1)]
dp2 = [[0 for i in range(100)] for _ in range(n + 1)]
dp3 = [[0 for i in range(1000)] for _ in range(n + 1)]

for i in range(n):
    dp1[i + 1][int(s[i])] = 1
    for j in range(10):
        if dp1[i][j]:
            dp2[i + 1][j * 10 + int(s[i])] = 1
            dp1[i + 1][j] = 1
    for j in range(100):
        if dp2[i][j]:
            dp3[i + 1][j * 10 + int(s[i])] = 1
            dp2[i + 1][j] = 1
    for j in range(1000):
        if dp3[i][j]:
            dp3[i + 1][j] = 1

print(sum(dp3[n]))
Buggy code:
import sys
input = sys.stdin.readline
n = int(input())
l = [d for d in input()]
k = set(l[:-2])
c = 0
for kk in list(k):
    i = l[:-2].index(kk)
    o = set(l[i + 1:-1])
    for oo in list(o):
        ii = l[i + 1:-1].index(oo) + (i + 1)
        p = set(l[ii + 1:])
        c += len(p)
print(c)


Fixed code:
#import sys
#input = sys.stdin.readline
n = int(input())
l = [d for d in input()]
k = set(l[:-2])
c = 0
for kk in list(k):
    i = l[:-2].index(kk)
    o = set(l[i + 1:-1])
    for oo in list(o):
        ii = l[i + 1:-1].index(oo) + (i + 1)
        p = set(l[ii + 1:])
        c += len(p)
print(c)
Buggy code:
N=int(input())
S=int(input())

l_S=list(str(S))

count=0
for i in range(0,1000):
    i_1=int(i/100)
    i_2=int(i/10)-i_1*10
    i_3=i%10
    if str(i_1) in l_S[:-2]:
        idx_1=l_S[:-2].index(str(i_1))
        if str(i_2) in l_S[idx_1+1:-1]:
            idx_2=l_S[idx_1+1:-1].index(str(i_2))+idx_1+1
            if str(i_3) in l_S[idx_2+1:]:
                count+=1
print(count)

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

l_S=list(S)

count=0
for i in range(0,1000):
    i_1=int(i/100)
    i_2=int(i/10)-i_1*10
    i_3=i%10
    if str(i_1) in l_S[:-2]:
        idx_1=l_S[:-2].index(str(i_1))
        if str(i_2) in l_S[idx_1+1:-1]:
            idx_2=l_S[idx_1+1:-1].index(str(i_2))+idx_1+1
            if str(i_3) in l_S[idx_2+1:]:
                count+=1
print(count)
Buggy code:
N = int(input())
S = input()

ans = 0
tmp = [0 for _ in range(10)]
for i in range(len(S)):
    tmp[int(S[i])] += 1

for i in range(1000):
    flag = True

    if i < 10:
        dic = {"0": 2}
    elif i < 100:
        dic = {"0": 1}
    else:
        dic = {}
    for j in range(len(str(i))):
        if str(i)[j] in dic:
            dic[str(i)[j]] += 1
        else:
            dic[str(i)[j]] = 1

    for k, v in dic.items():
        if dic[k] > tmp[int(k)]:
            flag = False
            break

    if flag:
        t = 0
        for j in range(len(S)):
            if str(i)[t] == S[j]:
                t += 1
            if t == 3:
                ans += 1
                break

print(ans)



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

ans = 0
tmp = [0 for _ in range(10)]
for i in range(len(S)):
    tmp[int(S[i])] += 1

for i in range(1000):
    flag = True

    if i < 10:
        dic = {"0": 2}
    elif i < 100:
        dic = {"0": 1}
    else:
        dic = {}
    for j in range(len(str(i))):
        if str(i)[j] in dic:
            dic[str(i)[j]] += 1
        else:
            dic[str(i)[j]] = 1

    for k, v in dic.items():
        if dic[k] > tmp[int(k)]:
            flag = False
            break

    if flag:
        if i < 10:
            tmp_i = "00" + str(i)
        elif i < 100:
            tmp_i = "0" + str(i)
        else:
            tmp_i = str(i)
        t = 0
        for j in range(len(S)):
            if tmp_i[t] == S[j]:
                t += 1
            if t == 3:
                ans += 1
                break

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

count = 0
for a in range(10):
    for b in range(10):
        for c in range(10):
            f1 = False
            f2 = False
            p1 = 0
            p2 = 0
            for i in range(0, n-2):
                if int(s[i]) == a:
                    f1 = True
                    p1 = i
                    break
            if f1:
                for j in range(p1+1, n-1):
                    if int(s[j]) == b:
                        f2 = True
                        p2 = j
                        break
            if f2:
                for k in range(p2+1, n):
                    if int(s[k]) == c:
                        count += 1
                        break
            if not f1 or not f2:
                break
    if not f1:
        break
print(count)


Fixed code:
# TLE

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

count = 0
for a in range(10):
    for b in range(10):
        for c in range(10):
            f1 = False
            f2 = False
            p1 = 0
            p2 = 0
            for i in range(0, n-2):
                if int(s[i]) == a:
                    f1 = True
                    p1 = i
                    break
            if f1:
                for j in range(p1+1, n-1):
                    if int(s[j]) == b:
                        f2 = True
                        p2 = j
                        break
            if f2:
                for k in range(p2+1, n):
                    if int(s[k]) == c:
                        count += 1
                        break
            if not f1 or not f2:
                break
print(count)
Buggy code:
n=int(input())
a=input()
ans=0
for i in range(1000):
    i=str(i).zfill(3)
    x=a.find(i[0])
    y=a[x+1:].find(i[1])
    z=a[y+1:].find(i[2])
    if x!=-1 and y!=-1 and z!=-1:
        ans+=1
print(ans)

Fixed code:
n=int(input())
a=input()
ans=0
for i in range(1000):
    i=str(i).zfill(3)
    x=a.find(i[0])
    y=a.find(i[1],x+1)
    z=a.find(i[2],y+1)
    if x!=-1 and y!=-1 and z!=-1:
        ans+=1
print(ans)
Buggy code:
n=int(input())
y=int(input())
x=str(y)
ans=0
for i in range(0,9):
  k=0
  ss="00"+str(i)
  for j in x:
    if k<3 and j==ss[k]:
      k+=1
  if k==3:
    ans+=1
for i in range(10,99):
  k=0
  ss="0"+str(i)
  for j in x:
    if k<3 and j==ss[k]:
      k+=1
  if k==3:
    ans+=1
for i in range(100,1000):
  k=0
  ss=str(i)
  for j in x:
    if k<3 and j==ss[k]:
      k+=1
  if k==3:
    ans+=1
print(ans)

Fixed code:
n=int(input())
x=input()
ans=0
for i in range(0,10):
  k=0
  ss="00"+str(i)
  for j in x:
    if k<3 and j==ss[k]:
      k+=1
  if k==3:
    ans+=1
for i in range(10,100):
  k=0
  ss="0"+str(i)
  for j in x:
    if k<3 and j==ss[k]:
      k+=1
  if k==3:
    ans+=1
for i in range(100,1000):
  k=0
  ss=str(i)
  for j in x:
    if k<3 and j==ss[k]:
      k+=1
  if k==3:
    ans+=1
print(ans)
Buggy code:
N = int(input())
S = input()

ans = 0
for p in range(1000):
  s = '{:03}'.format(p)
  i = 0
  for j in range(N):
    if i < 3 and S[j] == s[i]:
      i += 1
  	if i== 3:
      ans += 1
print(ans)

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

ans = 0
for p in range(1000):
  s = '{:03}'.format(p)
  i = 0
  for j in range(N):
    if i < 3 and S[j] == s[i]:
      i += 1
  if i == 3:
    ans += 1
print(ans)
Buggy code:
n = int(input())
s = input()
print(s)
cnt = 0
for s1 in range(10):
    s1_ind = s.find(str(s1))
    if s1_ind == -1 or s1_ind >= len(s)-2 : continue
    for s2 in range(10):
        s2_ind = s[s1_ind+1: ].find(str(s2)) + s1_ind + 1
        if s2_ind <= s1_ind or s2_ind >= len(s)-1: continue
        for s3 in range(10):
            s3_ind = s[s2_ind+1: ].find(str(s3)) + s2_ind + 1
            if s3_ind > s2_ind: 
                cnt+=1

print(cnt)



Fixed code:
n = int(input())
s = input()
cnt = 0
for s1 in range(10):
    s1_ind = s.find(str(s1))
    if s1_ind == -1 or s1_ind >= len(s)-2 : continue
    for s2 in range(10):
        s2_ind = s[s1_ind+1: ].find(str(s2)) + s1_ind + 1
        if s2_ind <= s1_ind or s2_ind >= len(s)-1: continue
        for s3 in range(10):
            s3_ind = s[s2_ind+1: ].find(str(s3)) + s2_ind + 1
            if s3_ind > s2_ind: 
                cnt+=1

print(cnt)
Buggy code:
S = input()
 
ans = 0
for i in range(1000):
    a, b, c = map(str, list(str(i).zfill(3)))
    mode = 'a'
    for j in S:
        if mode == 'a' and j == a:
            mode = 'b'
        elif mode == 'b' and j == b:
            mode = 'c'
        elif mode == 'c' and j == c:
            ans += 1
            break
print(ans)

Fixed code:
n=int(input())
S = input()
 
ans = 0
for i in range(1000):
    a, b, c = map(str, list(str(i).zfill(3)))
    mode = 'a'
    for j in S:
        if mode == 'a' and j == a:
            mode = 'b'
        elif mode == 'b' and j == b:
            mode = 'c'
        elif mode == 'c' and j == c:
            ans += 1
            break
print(ans)
Buggy code:
n=int(input())
s=input()
ans,a=0,[]
for i in range(n):
    if s[i] not in a:
        a+=[s[i]]
        b=[]
        for j in range(i+1,n):
            if s[j] not in b:
                b+=[s[j]]
                c=[]
                for k in range(j+1,n):
                    if k not in c:
                        c+=[s[k]]
                        ans+=1
print(ans)

Fixed code:
n=int(input())
s=input()
a,b,c=[],[],[]
ans=0
for i in range(n):
  if s[i] not in a:
    a.append(s[i])
    b=[]
    for j in range(i+1,n):
      if s[j] not in b:
        b.append(s[j])
        c=[]
        for k in range(j+1,n):
          if s[k] not in c:
            c.append(s[k])
            ans+=1
print(ans)
Buggy code:
import bisect
import collections

def read():
    N = int(input().strip())
    S = str(input().strip())
    return N, S

def dig(S, T, N):
    k0, k1, k2 = -1, -1, -1
    for i in range(N):
        if S[i] == T[0]:
            k0 = i
    if k0 == -1:
        return False
    for i in range(k0+1, N):
        if S[i] == T[1]:
            k1 = i
    if k1 == -1:
        return False
    for i in range(k1+1, N):
        if S[i] == T[2]:
            k2 = i
    if k2 == -1:
        return False
    return True


def solve(N, S):
    d = [collections.deque() for i in range(10)]
    count = 0
    for p in range(1000):
        T = '{:03d}'.format(p)
        count += 1 if dig(S, T, N) else 0
    return count
    
if __name__ == '__main__':
    inputs = read()
    output = solve(*inputs)
    print("%d" % output)


Fixed code:
import bisect
import collections

def read():
    N = int(input().strip())
    S = str(input().strip())
    return N, S

def dig(S, T, N):
    k0, k1, k2 = -1, -1, -1
    for i in range(N):
        if S[i] == T[0]:
            k0 = i
            break
    if k0 == -1:
        return False
    for i in range(k0+1, N):
        if S[i] == T[1]:
            k1 = i
            break
    if k1 == -1:
        return False
    for i in range(k1+1, N):
        if S[i] == T[2]:
            k2 = i
            break
    if k2 == -1:
        return False
    return True


def solve(N, S):
    d = [collections.deque() for i in range(10)]
    count = 0
    for p in range(1000):
        T = '{:03d}'.format(p)
        count += 1 if dig(S, T, N) else 0
    return count
    
if __name__ == '__main__':
    inputs = read()
    output = solve(*inputs)
    print("%d" % output)
Buggy code:
N, S = int(input()), list(input())

S_set = set(S)
ans = 0
for num in range(0, 1000):
    n0, n1, n2 = list(str(num).zfill(3))
    if n0 in S_set and n1 in S_set and n2 in S_set:
        idx0 = S.idx(n0)
        idx2 = N - S[::-1].idx(n2) - 1
        if idx0 < idx2:
            if n1 in S[idx0 + 1: idx2]:
                ans += 1
print(ans)

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

ans = 0
for num in range(0, 1000):
    n0, n1, n2 = list(str(num).zfill(3))
    if n0 in S_set and n1 in S_set and n2 in S_set:
        idx0 = S.index(n0)
        idx2 = N - S[::-1].index(n2) - 1
        if idx0 < idx2:
            if n1 in S[idx0 + 1: idx2]:
                ans += 1
print(ans)
Buggy code:
import sys
def input():
    return sys.stdin.readline()[:-1]

pass_list = list(map(lambda x: str(x).zfill(3), range(1000)))
res = 0

for p in pass_list:
    
    ptr = 0
    one = False
    two = False
    three = False
    
    for i in range(len(s)):
        if(s[i] == p[0]):
            ptr = i
            one = True
            break
    
    for i in range(ptr+1, len(s)):
        if(s[i] == p[1]):
            ptr = i
            two = True
            break
    
    for i in range(ptr+1, len(s)):
        if(s[i] == p[2]):
            ptr = i
            three = True
            break
    
    if(one and two and three): res += 1

print(res)

Fixed code:
import sys
def input():
    return sys.stdin.readline()[:-1]

n = int(input())
s = input()
pass_list = list(map(lambda x: str(x).zfill(3), range(1000)))
res = 0

for p in pass_list:
    
    ptr = 0
    one = False
    two = False
    three = False
    
    for i in range(len(s)):
        if(s[i] == p[0]):
            ptr = i
            one = True
            break
    
    for i in range(ptr+1, len(s)):
        if(s[i] == p[1]):
            ptr = i
            two = True
            break
    
    for i in range(ptr+1, len(s)):
        if(s[i] == p[2]):
            ptr = i
            three = True
            break
    
    if(one and two and three): res += 1

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

count = 0
for i in range(9):
  for j in range(9):
    for k in range(9):
      pas = [str(i),str(j),str(k)]
      key = 0
      for c in S:
        if c == pas[key]:
          key += 1
          if key ==3:
            count +=1
            break
print(count)

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

count = 0
for i in range(10):
  for j in range(10):
    for k in range(10):
      pas = (str(i),str(j),str(k))
      key = 0
      for c in S:
        if c == pas[key]:
          key += 1
          if key ==3:
            count +=1
            break
print(count)
Buggy code:
import bisect
n=int(input())
s=input()
t=[[] for i in range(10)]
for i in range(n):
    t[int(s[i])].append(i)
c=0
for i in range(10):
    if len(t[i])==0:
        continue
    for j in range(10):
        m=bisect.bisect(t[j],t[i][0])
        if len(t[j])==m:
            continue
        for k in range(10):
            n=bisect.bisect(t[k],t[j][m])
            if len(t[k])==n:
                continue
            else:
                c+=1
prin

Fixed code:
import bisect
n=int(input())
s=input()
t=[[] for i in range(10)]
for i in range(n):
    t[int(s[i])].append(i)
c=0
for i in range(10):
    if len(t[i])==0:
        continue
    for j in range(10):
        if len(t[j]) == 0:
            continue
        m=bisect.bisect(t[j],t[i][0])
        if len(t[j])==m:
            continue
        for k in range(10):
            if len(t[k]) == 0:
                continue
            n=bisect.bisect(t[k],t[j][m])
            if len(t[k])==n:
                continue
            else:
                c+=1
print(c)
Buggy code:
n = int(input())
s = list(map(int, input()))
print(s)
ans = 0
for i in range(10):
    for j in range(10):
        for k in range(10):
            preindex = 0
            flag1 = 0
            flag2 = 0
            flag3 = 0 
            while preindex < n:
                if s[preindex] == i:
                    preindex += 1
                    flag1 = 1
                    break
                preindex += 1

            while preindex < n:
                if s[preindex] == j:
                    preindex += 1
                    flag2 = 1
                    break
                preindex += 1

            while preindex < n:
                if s[preindex] == k:
                    flag3 = 1
                    break
                preindex += 1
            if flag1 and flag2 and flag3:
                ans += 1
print(ans)
             



Fixed code:
n = int(input())
s = list(map(int, input()))
ans = 0
for i in range(10):
    for j in range(10):
        for k in range(10):
            preindex = 0
            flag1 = 0
            flag2 = 0
            flag3 = 0 
            while preindex < n:
                if s[preindex] == i:
                    preindex += 1
                    flag1 = 1
                    break
                preindex += 1

            while preindex < n:
                if s[preindex] == j:
                    preindex += 1
                    flag2 = 1
                    break
                preindex += 1

            while preindex < n:
                if s[preindex] == k:
                    flag3 = 1
                    break
                preindex += 1
            if flag1 and flag2 and flag3:
                ans += 1
print(ans)
Buggy code:
N=int(input())
S=input()

ans=0

for i in range(10):
  if str(i) in S:
    a = S.find(str(i))
    for j in range(10):
      if str(j) in S[a+1:]:
      	b = S[a+1:].find(str(j))
      	for k in range(10):
          if str(k) in S[a+b+2:]:
            ans+=1
            print(i,j,k)

print(ans)

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

ans=0

for i in range(10):
  if str(i) in S:
    a = S.find(str(i))
    for j in range(10):
      if str(j) in S[a+1:]:
      	b = S[a+1:].find(str(j))
      	for k in range(10):
          if str(k) in S[a+b+2:]:
            ans+=1

print(ans)
Buggy code:
n = int(input())
s = input()
import itertools
state = itertools.product(list(range(10)),repeat = 3)
#print(list(state))
def lucky_pin(i):
    spot = -1
    for j in i:
        
        if str(j) in s[spot +1 : ]:
            spot = s[spot +1 : ].find(str(j)) +spot +1
            
        else:
            return 0
    return 1
print(lucky_pin(i))        
counter = 0
for i in state:
    if 1 ==  lucky_pin(i):
        
        counter +=1
print(counter)


Fixed code:
n = int(input())
s = input()
import itertools
state = itertools.product(list(range(10)),repeat = 3)
#print(list(state))
def lucky_pin(i):
    spot = -1
    for j in i:
        
        if str(j) in s[spot +1 : ]:
            spot = s[spot +1 : ].find(str(j)) +spot +1
            
        else:
            return 0
    return 1
      
counter = 0
for i in state:
    counter += lucky_pin(i)
        
print(counter)
Buggy code:
N = int(input())
S = input()
res = 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:
                res += 1         
print(res)

Fixed code:
N = int(input())
S = input()
 
res = 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:
                        res += 1
                
print(res)
Buggy code:
import sys
def input():
    return sys.stdin.readline()[:-1]
inf=float("inf")
n=int(input())
s=input()
li=[[-1]*10 for i in range(n+1)]
for i in range(n):
    li[-i-2]=li[-i-1][:]
    li[-i-2][int(s[-i-1])]=n-1-i
print(li)
ans=0
for i in range(1000):
    tmp=str(i)
    while len(tmp)!=3:
        tmp= "0"+tmp
    now=0
    for j in range(3):
        if li[now][int(tmp[j])]==-1:
            break
        now=li[now][int(tmp[j])]+1
        if j==2:
            ans+=1
print(ans)

Fixed code:
import sys
def input():
    return sys.stdin.readline()[:-1]
inf=float("inf")
n=int(input())
s=input()
li=[[-1]*10 for i in range(n+1)]
for i in range(n):
    li[-i-2]=li[-i-1][:]
    li[-i-2][int(s[-i-1])]=n-1-i

ans=0
for i in range(1000):
    tmp=str(i)
    while len(tmp)!=3:
        tmp= "0"+tmp
    now=0
    for j in range(3):
        if li[now][int(tmp[j])]==-1:
            break
        now=li[now][int(tmp[j])]+1
        if j==2:
            ans+=1
print(ans)
Buggy code:
#import math
#import bisect
#import numpy as np
#import itertools
import sys
input = sys.stdin.readline
MOD = 10**9 + 7
INF = float('INF')
sys.setrecursionlimit(10**5)

def main():
    n = int(input())
    s = input()
    ans = 0
    pin = list(itertools.product(range(10), repeat=3))

    for cur in pin:
        a, b, c = map(str,cur)
        if a in s:
            aidx = s.index(a)
            if b in s[aidx+1:]:
                bidx = s[aidx+1:].index(b) + (aidx + 1)
                if c in s[bidx+1:]:
                    ans += 1

    print(ans)


if __name__ == '__main__':
    main()

Fixed code:
#import math
#import bisect
#import numpy as np
import itertools
import sys
input = sys.stdin.readline
MOD = 10**9 + 7
INF = float('INF')
sys.setrecursionlimit(10**5)

def main():
    n = int(input())
    s = input()
    ans = 0
    pin = list(itertools.product(range(10), repeat=3))

    for cur in pin:
        a, b, c = map(str,cur)
        if a in s:
            aidx = s.index(a)
            if b in s[aidx+1:]:
                bidx = s[aidx+1:].index(b) + (aidx + 1)
                if c in s[bidx+1:]:
                    ans += 1

    print(ans)


if __name__ == '__main__':
    main()
Buggy code:
N = int(input())
S = input()
kouho = [str(i).zfill(3) for i in range(0,100)]
cnt =0
for k in kouho:
    ok = True
    S_temp = S
    for l in k:
        if l in S_temp:
            basho = S_temp.index(l)
            S_temp = S_temp[basho+1:]
        else:
            ok = False
            break
    if ok == True:
        cnt += 1
print(cnt)

Fixed code:
N = int(input())
S = input()
kouho = [str(i).zfill(3) for i in range(0,1000)]
cnt =0
for k in kouho:
    ok = True
    S_temp = S
    for l in k:
        if l in S_temp:
            basho = S_temp.index(l)
            S_temp = S_temp[basho+1:]
        else:
            ok = False
            break
    if ok == True:
        cnt += 1
print(cnt)
Buggy code:
N = int(input())
S = list(str(input()))

used = [0]*1000

for i in range(1000):
  stri = str(i)
  if len(stri) == 2:
    stri = "0"+stri
  elif len(stri) == 1:
    stri = "00"+stri
  count = 0
  for j in range(N):
    if S[j] == stri[count]:
      count += 1
    if count == 3:
      print(i)
      used[i] = 1
      break

print(sum(used))

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

used = [0]*1000

for i in range(1000):
  stri = str(i)
  if len(stri) == 2:
    stri = "0"+stri
  elif len(stri) == 1:
    stri = "00"+stri
  count = 0
  for j in range(N):
    if S[j] == stri[count]:
      count += 1
    if count == 3:
      used[i] = 1
      break

print(sum(used))
Buggy code:
def f():
    n = int(input())
    s = input()
    leftMemo = [None]*10
    rightMemo = [None]*10
    for i in range(10):
        char = str(i)
        for j in range(n):
            if s[j] == char:
                leftMemo[i] = j
                break
        for k in range(n-1,-1,-1):
            if s[k] == char:
                rightMemo[i] = k
                break
    ans = 0
    for leftNum in range(10):
        if leftMemo[leftNum] is None:
            continue
        start = leftMemo[leftNum]+1
        for rightNum in range(10):
            if rightMemo[rightNum] is None:
                continue
            end = rightMemo[rightNum]
            ans += len(set(s[start:end]))
    print(ans)

Fixed code:
def f():
    n = int(input())
    s = input()
    leftMemo = [None]*10
    rightMemo = [None]*10
    for i in range(10):
        char = str(i)
        for j in range(n):
            if s[j] == char:
                leftMemo[i] = j
                break
        for k in range(n-1,-1,-1):
            if s[k] == char:
                rightMemo[i] = k
                break
    ans = 0
    for leftNum in range(10):
        if leftMemo[leftNum] is None:
            continue
        start = leftMemo[leftNum]+1
        for rightNum in range(10):
            if rightMemo[rightNum] is None:
                continue
            end = rightMemo[rightNum]
            ans += len(set(s[start:end]))
    print(ans)


f()