by@yamayu832
WA
using System;
class E{static void Main(){
int[] A=new int[] {0,1,3,6,10,15,21,28,36,45,55,66,78,91,105,120,136,153,171,190,210,231,253};
Console.Write(0<=Array.IndexOf(A,Convert.ToInt32(Console.ReadLine(),2))?1:0);
}}01000010 11111101 01101001 10011001 11100111 00011010 10101100 11001110 01010100 00100100 00101101 01011011 00000011 10011110 11000000 10000010 00000001 00001111 01001010 01000011 00011011 00000110 01001110 01001110 10101011 10000110 00110111 11101101 10010110 00010101 10110001 01010000 00001100 00010011 00111011 00000000 00110110 00100101 01111000 10001000 11110111 11010010 01100100 00011000 00001010 00010010 11101010 11111101 00011100 10111110
1