# Task
Some children are playing rope skipping game. Children skip the rope at roughly the same speed: `once per second`. If the child fails during the jump, he needs to tidy up the rope and continue. This will take `3 seconds`.

You are given an array `failedCount`, where each element is the jump count at the failed. ie. `[12,23,45]` means the child failed 3 times in the game process. The 1st mistake occurred when he jumped 12 times; The 2nd mistake occurred when he jumped 23 times; The 3rd mistake occurred when he jumped 45 times.

Your task is to calculate how many times the child jumped in 60 seconds.

Note: Each child persisted at least 60 jumps, which meant it could have been over 60 seconds, but the child continued to skip rope.

# Input/Output

`[input]` integer array `failedCount`

`0 ≤ failedCount.length ≤ 60`

`1 ≤ failedCount[i] ≤ 60`

`[output]` an integer

how many times the child jumped in 60 seconds.


# Example

For `failedCount = []`, the output should be `60`.

There is no mistake in the game process. So the child jumped 60 times in 60 seconds.

For `failedCount = [12, 23, 45]`, the output should be `51`.
```
The 1st mistake occurred when he jumped 12 times. --> 12 seconds past.
Tidy up the rope and continue.                    --> 15 seconds past.
The 2nd mistake occurred when he jumped 23 times. --> 26 seconds past.
Tidy up the rope and continue.                    --> 29 seconds past.
The 3rd mistake occurred when he jumped 45 times. --> 51 seconds past.
Tidy up the rope and continue.                    --> 54 seconds past.
When he jumped 51 times                           --> 60 seconds past.
```

```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 tiaosheng(arr):\n    a,b = next(([arr[i-1],arr[i-1]+3*i] for i,j in enumerate(arr) if j+3*i>60),[arr[-1],arr[-1]+3*len(arr)]) if arr else [0,0]\n    return [a,a+60-b][b<60]'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

_target = None
_fn_name = 'tiaosheng'
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: 5470