flag="BKPCTF{"
for i in `seq 1 100`;
do
   echo $flag
    ## get address
   tflag="${flag}a"
   # addr=$(gdb -x x1.g --batch --args ./jit2  "${tflag}}"| grep 'BKPCTF{'|cut -d' ' -f3|tr -d '[:cntrl:]'|cut -d'x' -f2 | cut -d'[' -f1)
   # addr="0x$addr"
   # #echo $addr
   # fl=$(echo $flag | wc -c)
   # addr=$(($addr + $fl - 5))
   # addr=$(printf "%x" $addr)
   #echo $addr
   cat >script.g <<EOF 
b *0x437E0B 
commands 1
  awatch *0x7fffffffec81
  commands 2
    echo "winwin "
    p/d (\$eax+1)^5
    c
  end
  c
end
r
EOF
   #cat script.g
   x=$(gdb -x script.g --batch --args ./jit2 "${tflag}}" | grep winwin|tail -n1| cut -d'=' -f2)
   c=$(awk "BEGIN{printf \"%c\",$x}")
   flag="${flag}${c}"
done