ropshell> use 0fc6cdf0eeac48713362b652112ad079 (download)
name         : ch97 (x86_64/ELF)
base address : 0x4004d0
total gadgets: 8686

ropshell> suggest "sp lifting"
> 0x0040daed : add rsp, 0x118; ret
> 0x0040daed : add rsp, 0x118; ret
> 0x00448999 : add rsp, 0x28; ret
> 0x004754f0 : add rsp, 0x38; ret
> 0x00448bc9 : add rsp, 0x58; ret
> 0x004818cb : add rsp, 0x48; jmp [rax]