# Task

John is a programmer. He treasures his time very much. He lives on the `n` floor of a building. Every morning he will go downstairs as quickly as possible to begin his great work today.

There are two ways he goes downstairs: walking or taking the elevator.

When John uses the elevator, he will go through the following steps:
```
1. Waiting the elevator from m floor to n floor;
2. Waiting the elevator open the door and go in;
3. Waiting the elevator close the door;
4. Waiting the elevator down to 1 floor;
5. Waiting the elevator open the door and go out;
(the time of go in/go out the elevator will be ignored)
```

Given the following arguments:
```
n: An integer. The floor of John(1-based).
m: An integer. The floor of the elevator(1-based).
speeds: An array of integer. It contains four integer [a,b,c,d]
        a: The seconds required when the elevator rises or falls 1 floor
        b: The seconds required when the elevator open the door
        c: The seconds required when the elevator close the door
        d: The seconds required when John walks to n-1 floor
```

Please help John to calculate the shortest time to go downstairs.




# Example

For `n = 5, m = 6 and speeds = [1,2,3,10]`, the output should be `12`.

John go downstairs by using the elevator:

`1 + 2 + 3 + 4 + 2 = 12`

For `n = 1, m = 6 and speeds = [1,2,3,10]`, the output should be `0`.

John is already at 1 floor, so the output is `0`.

For `n = 5, m = 4 and speeds = [2,3,4,5]`, the output should be `20`.

John go downstairs by walking:

`5 x 4 = 20`

```python

USER_FILENAME = "<user_code>"
import sys, json, builtins
import math, heapq, bisect, itertools, functools, collections, statistics, fractions, decimal, operator, array, random, re, string, os, pathlib
try:
    import resource as _res
except Exception:
    _res = None
from collections import Counter, defaultdict, deque, OrderedDict
from functools import lru_cache, reduce
from itertools import accumulate, permutations, combinations, product
from math import gcd, ceil, floor, sqrt
from decimal import Decimal
try:
    from typing import *
except Exception:
    pass
try:
    sys.setrecursionlimit(1_000_000)
except Exception:
    pass
try:
    import site as _site
    try:
        _sys_sites = _site.getsitepackages() if hasattr(_site, "getsitepackages") else []
        for _p in _sys_sites:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
    try:
        _usp = _site.getusersitepackages()
        if isinstance(_usp, str):
            _usp = [_usp]
        for _p in _usp:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
except Exception:
    pass

def _disabled_input(*args, **kwargs):
    raise RuntimeError("input() is disabled in callable mode")
builtins.input = _disabled_input

ns = {"__name__": "__judge__"}  # prevent if __name__ == "__main__" blocks
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = 'def shortest_time(n, m, speeds):\n    if n == 1:\n        return 0\n    else:\n        move,open,close,walk=speeds\n        elevator = abs(n-m)*move+open+close+move*(n-1)+open\n        walking = walk*(n-1)\n    return min(elevator, walking)'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'shortest_time'
if _fn_name:
    if "Solution" in ns:
        try:
            _obj = ns["Solution"]()
            if hasattr(_obj, _fn_name):
                _target = getattr(_obj, _fn_name)
        except Exception:
            _target = None
    if _target is None and _fn_name in ns and callable(ns[_fn_name]):
        _target = ns[_fn_name]
# Fallback: if there's exactly one user-defined function, use it
if _target is None:
    _cands = [v for k, v in ns.items() if callable(v) and getattr(v, "__module__", "") in ("__judge__", "__main__")]
    _user_funcs = [c for c in _cands if getattr(c, "__name__", "").startswith("_") is False]
    if len(_user_funcs) == 1:
        _target = _user_funcs[0]
if _target is None:
    raise RuntimeError(f"Could not resolve callable '{_fn_name}'")

_raw = sys.stdin.read().strip()
if _raw:
    _parsed = json.loads(_raw)
    if isinstance(_parsed, dict):
        _kwargs = _parsed.get("kwargs", {})
        _args = _parsed.get("args", [])
    else:
        _args, _kwargs = _parsed, {}
else:
    _args, _kwargs = [], {}
if not isinstance(_args, (list, tuple)):
    _args = [_args]
_res = _target(*_args, **_kwargs)
try:
    sys.stdout.write(repr(_res) + "\n")
except Exception:
    pass

```

Measured memory_bytes: 5482