#define _USE_MATH_DEFINES
#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define MT make_tuple
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
#define RT return
#define vv(a,b,c,d) vector<vector<a> >(b,vector<a>(c,d))
#define vvv(a,b,c,d,e) vector<vector<vector<a> > >(b,vv(a,c,d,e))
using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;
using vll = vector<ll>;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << fixed << setprecision(20);

    string N;
    cin >> N;
    N = string("0") + N;
    int K = sz(N);
    const int INF = 1 << 29;
    auto dp = vv(int, 2, K + 1, INF);
    dp[0][0] = 0;
    rep(j, K) rep(i, 2) {
        int d = 10 * i - (N[j] - '0');
        rep(ax, 2)rep(ay, 5) {
            int a = d + ax * 5 + ay;
            rep(bx, 2)rep(by, 5) {
                int b = a - bx * 5 - by;
                if (b==0||b==1) {
                    int used = dp[i][j] + ax + ay + bx + by;
                    smin(dp[b][j + 1], used);
                }
            }
        }
    }
    cout << dp[0][K] << endl;
}