#include <bits/stdc++.h>
#include <sys/time.h>
using namespace std;

#define rep(i,n) for(long long i = 0; i < (long long)(n); i++)
#define pb push_back
template<class T1, class T2> bool chmin(T1 &a, T2 b) { return b < a && (a = b, true); }

using ll = long long; using vll = vector<ll>;

unordered_map<ll, ll> memo;
ll pay[10] = {0, 1, 2, 3, 2, 1, 2, 3, 3, 2};
vll p10;
ll dfs(ll n) {
    n = abs(n);
//    if (memo.count(n)) return memo[n];
    if (!n) return 0;

    vll nd;
    ll only_msd = 1; // n = a*10^kなるa, kが存在するか
    ll n_tmp = n;
    for (; n_tmp ; n_tmp /= 10) nd.pb(n_tmp % 10);
    rep(i, nd.size()-1) only_msd &= !nd[i];
    ll msd = nd.back(); // 最大桁
    ll d = p10[nd.size()-1]; // 桁数

    ll ret = 4e18;
    chmin(ret, pay[msd] + dfs(n - msd * d));
    if (!only_msd) 
        chmin(ret, pay[msd==9?1:msd+1] + dfs((msd + 1) * d - n));

    return memo[n] = ret;
}

int main(void) {
    ll n; cin >> n; assert(1<=n&&n<=1e18);
    for (ll b = 1, i = 0; i < 18; b*=10, i++) 
        p10.pb(b);
    cout << dfs(n) << endl;
    return 0;
}