Hit the core in the advanced area of misc in the attack and defense world

hit-the-core

Give it to zip File decompression , Get suffix core The file of
First use txt open , Search for flag、“ {”、 “ } ” To no avail
Reuse 010eidter open , Also try to search first flag, To no avail
Try to search { , One by one
See the figure below

“ { ” Connect the capital letters in front ：ALEXCTF
And they all choose one every four
Take one of the contents in brackets every four

num='cvqAeqacLtqazEigwiXobxrCrtuiTzahfFreqc{bnjrKwgk83kgd43j85ePgb_e_rwqr7fvbmHjklo3tews_hmkogooyf0vbnk0ii87Drfgh_n kiwutfb0ghk9ro987k5tfb_hjiouo087ptfcv}'
flag = ''
for i in  range(3,len(num),5):
   flag += num[i]
print(flag)

flag

ALEXCTF{
    K33P_7H3_g00D_w0rk_up}