alf="1234567890QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm<>:,.!@#$%^&*(){}[]"
check="yeah_reverse_the_best"

def func(s,step):
    sim=ord(s) ^ ord('f')
    sim=sim + ord('l')
    sim=sim - ord('g')
    if step==0:
        sim=sim + 98
    if step==1:
        sim=sim + 82
    if step==2:
        sim=sim + 77
    if step==3:
        sim=sim + 78
    if step==4:
        sim=sim + 33
    if step==5:
        sim=sim + 94
    if step==6:
        sim=sim + 75
    if step==7:
        sim=sim + 56
    if step==8:
        sim=sim + 76
    if step==9:
        sim=sim + 106
    if step==10:
        sim=sim + 94
    if step==11:
        sim=sim + 93
    if step==12:
        sim=sim + 70
    if step==13:
        sim=sim + 90
    if step==14:
        sim=sim + 96
    if step==15:
        sim=sim + 25
    if step==16:
        sim=sim + 19
    if step==17:
        sim=sim + 22
    if step==18:
        sim=sim + 25
    if step==19:
        sim=sim + 39
    if step==20:
        sim=sim + 40

    return sim


flag=""
step=0
for j in check:
    for i in alf:
        if func(i,step) == ord(j):
            print("--------------",i)
    step+=1
#print(flag)