Buggy python submission (verdict: Runtime Error):
import numpy as np
from operator import itemgetter

N = int(input())

list = []
for i in range(N):
    a,b=input().split()
    list.append([a, int(b),i+1])
sort1 = sorted(list, key=itemgetter(0))
if N == 1:
  print(1)
else:
  ans = []
  kari = []
  end = 1
  k = 1
  for i in range(0,N-1):
    if end == 1:
      kari.append(sort1[i])
      else:
        k = 0
        if sort1[i][0] == sort1[i+1][0]:  
          kari.append(sort1[i+1])
          end = 0
          if i+1 > N-2:
            kari.sort(key=itemgetter(1),reverse=True)
            ans.extend(kari)

            else:
              kari.sort(key=itemgetter(1),reverse=True)
              ans.extend(kari)
              if i+1 > N-2:
                ans.append(sort1[i+1])
                kari = []
                end = 1
  print(sort1)
  print(ans)
  for i in range(0,len(ans)):
      print(ans[i][2])

Fixed submission:
import numpy as np
from operator import itemgetter
 
N = int(input())
 
list = []
for i in range(N):
    a,b=input().split()
    list.append([a, int(b),i+1])
sort1 = sorted(list, key=itemgetter(0))
if N == 1:
  	print(1)
else:
    ans = []
    kari = []
    end = 1
    k = 1
    for i in range(0,N-1):
        if end == 1:
            kari.append(sort1[i])
        else:
            k = 0
        if sort1[i][0] == sort1[i+1][0]:  
            kari.append(sort1[i+1])
            end = 0
            if i+1 > N-2:
            	kari.sort(key=itemgetter(1),reverse=True)
            	ans.extend(kari)

        else:
            kari.sort(key=itemgetter(1),reverse=True)
            ans.extend(kari)
            if i+1 > N-2:
            	ans.append(sort1[i+1])
            kari = []
            end = 1
    
    for i in range(0,len(ans)):
        print(ans[i][2])

Buggy python submission (verdict: Runtime Error):
import numpy as np
from operator import itemgetter

N = int(input())

list = []
for i in range(N):
    a,b=input().split()
    list.append([a, int(b),i+1])
sort1 = sorted(list, key=itemgetter(0))
ans = []
kari = []
end = 1
k = 1
for i in range(0,N-1):
    if end == 1:
    	kari.append(sort1[i])
    else:
      	k = 0
    if sort1[i][0] == sort1[i+1][0]:  
        kari.append(sort1[i+1])
        if i+1 > N-2:
        	kari.sort(key=itemgetter(1),reverse=True)
        	ans.extend(kari)
        end = 0
    else:
        kari.sort(key=itemgetter(1),reverse=True)
        ans.extend(kari)
        if i+1 > N-2:
        	ans.extend(sort1[i+1])
        kari = []
        end = 1

for i in range(0,len(ans)):
	print(ans[i][2])

Fixed submission:
import numpy as np
from operator import itemgetter
 
N = int(input())
 
list = []
for i in range(N):
    a,b=input().split()
    list.append([a, int(b),i+1])
sort1 = sorted(list, key=itemgetter(0))
if N == 1:
  	print(1)
else:
    ans = []
    kari = []
    end = 1
    k = 1
    for i in range(0,N-1):
        if end == 1:
            kari.append(sort1[i])
        else:
            k = 0
        if sort1[i][0] == sort1[i+1][0]:  
            kari.append(sort1[i+1])
            end = 0
            if i+1 > N-2:
            	kari.sort(key=itemgetter(1),reverse=True)
            	ans.extend(kari)

        else:
            kari.sort(key=itemgetter(1),reverse=True)
            ans.extend(kari)
            if i+1 > N-2:
            	ans.append(sort1[i+1])
            kari = []
            end = 1
    
    for i in range(0,len(ans)):
        print(ans[i][2])