from pwn import *

datas = [0xdb, 0xe2, 0xeb, 0xf7, 0xd6, 0xed, 0xeb, 0xc5, 0xe8, 0xa2, 0xab, 0xee, 0xd8, 0xc1, 0xae, 0xb7, 0xc4, 0xc5, 0xf1, 0xb0, 0xab, 0xc1, 0xd0, 0xbe, 0xe7, 0xba, 0xd6, 0xce, 0xeb, 0x9f]

flags = [ord("K")]

for i in range(len(datas)):
    flags.append(flags[-1]^datas[i]^i^0xff)

for i in flags:
    print(chr(i), end="")

# KosenCTF{d0nt_l3t_th4t_f00l_u}
