new option for solution

practica/stepik/stepik_tasks/sum_num_nearby.py

@@ -1,3 +1,4 @@
+# вариант решения 1
 a = input().split()
 len_a = len(a) - 1
 for index, number in enumerate(a):
@@ -19,3 +20,17 @@ for index, number in enumerate(a):
          b += " " + str(S2)
          print (b)
  
+
+# вариант решения 2 -короче
+initial_list = input().split()
+sum_list = []
+left_index = -1
+right_index = -len(initial_list) + 1
+middle_index = 0
+while middle_index < len(initial_list):
+    sum_list.append(initial_list[left_index] + initial_list[right_index])
+    left_index += 1
+    right_index += 1
+    middle_index += 1
+print(sum_list)
+