by@xuzijian629_key
WA
while 1:i=1^((1+8*int(input(i|''),2))**.5%1>0)
00010010 01001110 01001000 00001010 01111100 01111000 00000110 00011100 00111010 01000010 10001101 00101101 00001110 00011101 00110001 00000000 11100111 01000010 11111001 00000011 11010101 11011001 00011100 11111101 00000001 11111011 00110111 01000110 00100100 00001111 01100010 00010011 10011011 10111110 00100010 01111011 11010010 01010101 11000000 00010101 00110000 01011011 10001000 01101001 11101000 01111010 10100101 10101011 00111001 10011001
Traceback (most recent call last):
File "/volume/CODE", line 1, in <module>
while 1:i=1^((1+8*int(input(i|''),2))**.5%1>0)
NameError: name 'i' is not defined