20 lines
309 B
Python
20 lines
309 B
Python
import os
|
|
|
|
input = open(os.path.dirname(__file__) +
|
|
"/input.txt", "r").read()
|
|
|
|
index = 0
|
|
index2 = 0
|
|
buf = []
|
|
for x in input:
|
|
index += 1
|
|
index2 += 1
|
|
buf.append(x)
|
|
if len(buf) == 4:
|
|
if len(set(buf)) == 4:
|
|
break
|
|
else:
|
|
buf.pop(0)
|
|
|
|
print(index)
|