#include<cstdio>
#include<climits>
#include<cmath>
#include<cstdlib>
#include<cstring>
#include<cassert>
#include<vector>
#include<iostream>
#include<fstream>
#include<sstream>
#include<queue>
#include<stack>
#include<set>
#include<map>
#include<unordered_map>
#include<unordered_set>
#include<deque>
#include<list>
#include<string>
#include<bitset>
#include<algorithm>
#include<functional>
#include<numeric>
#include<random>
#include<complex>
using namespace std;
int jisuf(int n) {
int k = 0;
while (n != 0)
{
n = n / 10;
++k;
}
return k;
}
int solution(string s) {
int answer = 0;
int len = s.length();
vector<int> v1(1001, 100001);
if (len == 1) {
return 1;
}
for (int i = 1; i < len / 2 + 1; i++) {
int pull = len;
string tmp = "1";
int cnt = 1;
int k = 1;
int jisu = 0;
for (int j = 0; j < len; j += i) {
int length = 0;
if (tmp == s.substr(j, i)) {
pull = pull - i;
cnt++;
if (jisuf(cnt) != jisu) {
jisu++;
pull++;
}
}
else {
cnt = 1;
jisu = 0;
}
tmp = s.substr(j, i);
}
v1[i] = pull;
}
return *min_element(v1.begin() + 1, v1.end());
}
int main() {
string a;
while (1) {
cin >> a;
cout << solution(a) << endl;;
}
}