2ex1 reverse winter vacation career (24/100)

Open the attached text file:

│_r-+_Cl5;vgq_pdme7#7eC0=

Presumablybase64

Drag into ida

A 64-string base sequence table was found

@,.1fgvw#`/2ehux$~"3dity%_;4cjsz^+{
    
    5bkrA&=}6alqB*-[70mpC()]89noD

The text is all MIPS32 instructions. First guess if base64 is deformed. If not, then analyze the MIPS instructions.

Tool parsing deformation base64

flag{
    
    change53233}