using System;class Program {static void Main() {int len=0x23;Console.Write("INPUT > ");string flag=Console.ReadLine();if((flag.Length)!=len){Console.WriteLine("WRONG!");}else{if(flag[0]==0x63&&flag[1]==0x74&&flag[2]==0x66&&flag[3]==0x34&&flag[4]==0x62&&flag[5]==0x7b&&flag[6]==0x31&&flag[7]==0x5f&&flag[8]==0x31&&flag[9]==0x69&&flag[10]==0x6e&&flag[11]==0x33&&flag[12]==0x72&&flag[13]==0x35&&flag[14]==0x5f&&flag[15]==0x6d&&flag[16]==0x61&&flag[17]==0x6b&&flag[18]==0x33&&flag[19]==0x5f&&flag[20]==0x50&&flag[21]==0x47&&flag[22]==0x5f&&flag[23]==0x68&&flag[24]==0x61&&flag[25]==0x72&&flag[26]==0x64&&flag[27]==0x5f&&flag[28]==0x32&&flag[29]==0x5f&&flag[30]==0x72&&flag[31]==0x33&&flag[32]==0x61&&flag[33]==0x64&&flag[34]==0x7d){Console.WriteLine("YES!!!\nThis is Flag :)");}else{Console.WriteLine("WRONG!");}}}}

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