Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()


dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for key in dict:
    if key == 0:
        break
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()


dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for key in dict:
    if key == 0:
        break
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum *= n**dict[i]%998244353
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()


dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for key in dict:
    if key == 0:
        break
    if dict[key] == 0:
        print(0)
        exit()
sum = float(1)
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum *= n**dict[i]%998244353
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()


dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for key in dict:
    if key == 0:
        break
    if dict[key] == 0:
        print(0)
        exit()
sum = float(1)
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum *= n**dict[i]
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()


dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for key in dict:
    if key == 0:
        break
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)

for i in range(len(dict_dm) + 1):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum *= n**dict[i]
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)

Buggy python submission (verdict: Runtime Error):
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()


dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for key in dict:
    if key == 0:
        break
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)

for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum *= n**dict[i]
        n = dict[i]

print(sum%998244353)

Fixed submission:
import math

N = int(input())
D = list(map(int, input().split()))

if D[0] != 0:
    print(0)
    exit()

dict = {}

for i in range(len(D)):
    if D[i] not in dict:
        dict[D[i]] = 1
    else:
        dict[D[i]] += 1

for i in range(max(D)):
    if i not in dict:
        dict[i] = 0
    
for key in dict:
    if key == 0:
        if dict[key] != 1:
            print(0)
            exit()       
    if dict[key] == 0:
        print(0)
        exit()
sum = 1
n = 0

#dict = list(sorted(dict.items(), key=lambda x:x[0]))
dict_dm = sorted(dict)
#print(dict)
#print(dict_dm)
flg = 0
for i in range(len(dict_dm)):
    if i == 1:
        #print("check2")
        n = dict[i]
    elif i >=1:
        #print("check1")
        sum = (sum * n**dict[i])%998244353
        n = dict[i]

print(sum%998244353)