def tournament(input_list):
if len(input_list)<=2:
input_list.replace("'","")
return input_list
else:
mid=len(input_list)/2
 from math import ceil
idx=ceil(mid)
input_list.replace("'","")
return [tournament(input_list[:idx]),tournament(input_list[idx:])]

a=(input("입력"))
list=tournament(a)
print(list)

인풋:[1,2,3,4,5]

원했던 결과:[[[1,2],[3]],[4,5]]

실제 결과:[[['[1', ','], ['2,', '3']], [[',4', ','], '5]']]

뭐임....