Buggy python submission (verdict: Runtime Error):
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
o['x']=0
e['x']=0
ov=o.values()+[0]
ev=e.values()+[0]
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[-2]
    else:
      mo=sorted(ov)[-2]
  print(n-mo-me)

Fixed submission:
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
o['x']=0
e['x']=0
ov=o.values()
ev=e.values()
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[-2]
    elif mo<me:
      mo=sorted(ov)[-2]
    else:
      mo=max(sorted(ev)[-2],sorted(ov)[-2])
  print(n-mo-me)

Buggy python submission (verdict: Runtime Error):
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
ov=o.values()+[0]
ev=e.values()+[0]
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[-2]
    else:
      mo=sorted(ov)[-2]
  print(n-mo-me)

Fixed submission:
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
o['x']=0
e['x']=0
ov=o.values()
ev=e.values()
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[-2]
    elif mo<me:
      mo=sorted(ov)[-2]
    else:
      mo=max(sorted(ev)[-2],sorted(ov)[-2])
  print(n-mo-me)

Buggy python submission (verdict: Runtime Error):
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
ov=o.values()
ev=e.values()
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[n//2-2]
    else:
      mo=sorted(ov)[n//2-2]
  print(n-mo-me)

Fixed submission:
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
o['x']=0
e['x']=0
ov=o.values()
ev=e.values()
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[-2]
    elif mo<me:
      mo=sorted(ov)[-2]
    else:
      mo=max(sorted(ev)[-2],sorted(ov)[-2])
  print(n-mo-me)

Buggy python submission (verdict: Runtime Error):
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
ov=o.values()
ev=e.values()
mo=max(ov)
me=max(ev)
if max(o,key=o.get)==max(e,key=e.get):
  if mo>me:
    me=sorted(ev)[n//2-2]
  else:
    mo=sorted(ov)[n//2-2]
print(n-mo-me)

Fixed submission:
n=int(input())
a=list(map(int,input().split()))
o=[]
e=[]
for i in range(n):
  if i%2==0:
    o.append(a[i])
  else:
    e.append(a[i])
from collections import Counter as co
o=co(o)
e=co(e)
o['x']=0
e['x']=0
ov=o.values()
ev=e.values()
mo=max(ov)
me=max(ev)
if n==2:
  if a[0]==a[1]:
    print(1)
  else:
    print(0)
else:
  if max(o,key=o.get)==max(e,key=e.get):
    if mo>me:
      me=sorted(ev)[-2]
    elif mo<me:
      mo=sorted(ov)[-2]
    else:
      mo=max(sorted(ev)[-2],sorted(ov)[-2])
  print(n-mo-me)