Python T.C. kimlik numarası bulma kodunda hata mı var?

        print("TC kimlik numaranızı tek tek 9 hanesini giririniz.")
        tc1=int(input())
        tc2=int(input())
        tc3=int(input())
        tc4=int(input())
        tc5=int(input())
        tc6=int(input())
        tc7=int(input())
        tc8=int(input())
        tc9=int(input())
        tc10=((tc1+tc2+tc3+tc4+tc5+tc6+tc7+tc8+tc9)*7)%10
        tc11=(tc1+tc2+tc3+tc4+tc5+tc6+tc7+tc8+tc9+tc10)%10
        print(tc1,tc2,tc3,tc4,tc5,tc6,tc7,tc8,tc9,tc10,tc11)

print("TC kimlik numaranızı tek tek 9 hanesini giriniz.")
tc1=int(input())
tc2=int(input())
tc3=int(input())
tc4=int(input())
tc5=int(input())
tc6=int(input())
tc7=int(input())
tc8=int(input())
tc9=int(input())
tc10=(((tc1+tc3+tc5+tc7+tc9)*7)+(tc2+tc4+tc6+tc8))%10
tc11=(tc1+tc2+tc3+tc4+tc5+tc6+tc7+tc8+tc9+tc10)%10
print("TC numaranız:", tc1,tc2,tc3,tc4,tc5,tc6,tc7,tc8,tc9,tc10,tc11)

        tc1=int(input())
        tc2=int(input())
        tc3=int(input())
        tc4=int(input())
        tc5=int(input())
        tc6=int(input())
        tc7=int(input())
        tc8=int(input())
        tc9=int(input())
        tc10=(((tc1+tc3+tc5+tc7+tc9)*7)+((tc2+tc4+tc6+tc8)*9))%10
        tc11=(tc1+tc2+tc3+tc4+tc5+tc6+tc7+tc8+tc9+tc10)%10
        print(tc1,tc2,tc3,tc4,tc5,tc6,tc7,tc8,tc9,tc10,tc11)

a = input("TC kimlik numaranızın ilk 9 hanesini giriniz: ")

odds = 0
evens = 0
for i in range(0, 10, 2):
    odds += int(a[i])

for i in range(1, 9, 2):
    evens += int(a[i])

tc10 = (odds * 7 - evens) % 10

sum = 0
for i in a + str(tc10):
    sum += int(i)

tc11 = sum % 10
tc = a + str(tc10) + str(tc11)

print(tc)