Python-сообщество

 s=list(int(i) for i in input().split())
l=len(s)-1
for j in s:
    if s.index(j)==0:
        print(s[1]+s[-1],end=' ')
    elif s.index(j)==l:
        print(s[(len(s)-1)-1]+s[0],end=' ')
    else:
        for i in range(1,len(s)):
            if i<l:
                print(s[i-1]+s[i+1],end=' ')

 if s[i]>0 and s[i]<l

 >>> spis = [5,6,7,8,9]
>>> for i, v in enumerate(spis):
	print("Index", i, " Value", v)
	
Index 0  Value 5
Index 1  Value 6
Index 2  Value 7
Index 3  Value 8
Index 4  Value 9

 trace0 = list(1, 2, 3, 4, 5, 6, 7, 8, 9, 10 , 11, 12, 13)
d = 3
def fac(trace, d):
    length_trace = int(len(trace))
    f_trace = [i*0 for i in range(d)]  # нулевая матрица размерности
    list_d = [i for i in range(len(f_trace))]
    list_d.reverse()
    b = copy.deepcopy(list_d)
    
    for k in b:
        for z in range(d):
            for i in range(length_trace - k - 1)
                    f_trace[z] += trace[i] * trace[i + k]
     return f_trace
trace1 = list(fac(trace0, d))
print(trace1)

 trace0 = list(1, 2, 3, 4, 5, 6, 7, 8, 9, 10 , 11, 12, 13)

 length_trace = int(len(trace))

 f_trace = [i*0 for i in range(d)]

 print([i*0 for i in range(3)])

 list_d = [i for i in range(len(f_trace))]

 f_trace[z] += trace[i]*trace[i - k]

 test = range(5)
sum1 = len(test)
sum2 = int(len(test))
print(1, sum1, type(sum1))
print(2, sum2, type(sum2))

  f_trace = [i*0 for i in range(d)]

 print(0 * 0)
print(1 * 0)
print(2 * 0)

 f_trace = [0, 0, 0]

 f_trace = [0] * 3