Vadim Goodkin

def modify_list(l):
le = len(l)-1
i = le
while i!=-1:
if l[i]%2:
del l[i]
else:
l[i]=l[i]//2
i -=1
return

Можно еще так:

def spiral(n):
dx,dy = 1,0
x,y = 0,0
myarray = [[None]* n for j in range(n)]
for i in range(1,n**2+1):
myarray[x][y] = i
nx,ny = x+dx, y+dy
if 0<=nx x,y = nx,ny
else:
dx,dy = -dy,dx
x,y = x+dx, y+dy
return myarray

def printspiral(myarray):
n = range(len(myarray))
for y in n:
for x in n:
print (myarray[x][y],end=' ')
print()

n = int(input())
printspiral(spiral(n))

s = [ int(i) for i in input().split()]
t = []
s.sort()
l = len(s)-1
k = 100000
if len(s)!=1:
for i in range(0,l):
if s[i]==s[i+1] and s[i]!=k:
t.append(s[i])
k=s[i]
for j in range(l,l+1):
if s[-1]==s[-2] and s[j]!=k:
t.append(s[j])
n = len(t)
for g in range(0,n):
print(t[g],end=' ')

s = [ int(i) for i in input().split()]
t = []
l = len(s)-1
k = 0
i = 0
if len(s)==0:
print(str(0))
else:
for st in s:
if len(s)>1:
if i==0:
k = s[i+1] + s[-1]
t.append(k)
elif i>0 and i k=s[i-1]+s[i+1]
t.append(k)
elif i==l:
k = s[i-1]+s[0]
t.append(k)
elif len(s)==1:
k = s[i]
t.append(k)
i +=1
j = 0
for st2 in t:
print(str(t[j])+' ',end='')
j +=1

s = str(input())
l = len(s)-1
c = 1
t = ''
if len(s)==1:
t = t +s+str(c)
else:
for i in range(0,l):
if s[i]==s[i+1]:
c +=1
elif s[i]!=s[i+1]:
t = t + s[i]+str(c)
c = 1
for j in range(l,l+1):
if s[-1]==s[-2]:
t = t +s[j]+str(c)
elif s[-1]!=s[-2]:
t = t +s[j]+str(c)
c = 1
print(t)