ыч

>#put your code here

if (OP >= tooFat) {
call b&d(IP) or goto exit(ERROR_CODE);
}

if lock==False:

    if i==0 and i==len(lst)-1:
        sum+=dict[lst[i]]
    elif i==0:
        pass
    elif dict[lst[i-1]]<dict[lst[i]]:
        sum+=dict[lst[i]]-dict[lst[i-1]]
        lock=True
    elif dict[lst[i-1]]>dict[lst[i]]:
        sum+=dict[lst[i-1]]  #+dict[lst[i]]
        lock=True
    elif dict[lst[i-1]]==dict[lst[i]]:
        sum+=dict[lst[i-1]]+dict[lst[i]]
        lock=True