Problem: You are given a positive (greater than zero) integer n.

You have to represent n as the sum of integers (possibly negative) consisting only of ones (digits '1'). For example, 24 = 11 + 11 + 1 + 1 and 102 = 111 - 11 + 1 + 1. 

Among all possible representations, you have to find the one that uses the minimum number of ones in total.

Input

The single line contains one integer n (1 ≤ n < 10^{50}).

Output

Print one integer x — the minimum number of ones, such that there exist a representation of n as the sum of integers (possibly negative) that uses x ones in total.

Examples

Input


24


Output


6


Input


102


Output


7

Solution (in CPP):

Solution:
#include<cstdio>
#include<cstring>
#define inf 0x7f7f7f7f
const int mxc=40,mxx=500;
int l,Test_num;char ch[55];
int f[55][82][1002][2];
inline int min(int a,int b)
{
	return a<b? a:b;
}
inline int dp(int pos,int c,int x,int delta)
{
	if(pos==l)return c? inf:0;if(c>mxc || c<-mxc || x>mxx || x<-mxx)return inf;
	if(!(~f[pos][c+mxc][x+mxx][(delta==1)]))f[pos][c+mxc][x+mxx][(delta==1)]=min(dp(pos,c,x+delta,delta)+l-pos,
	min(dp(pos+1,c*10+ch[pos+1]-x,x,1),dp(pos+1,c*10+ch[pos+1]-x,x,-1)));
	return f[pos][c+mxc][x+mxx][(delta==1)];
}
int main()
{
	scanf("%s",ch+2),l=strlen(ch+2)+1,ch[1]=0;
	for(int i=2;i<=l;++i)ch[i]^=48;
	memset(f,-1,sizeof(f)),printf("%d",dp(0,0,0,1));
	return 0;
}