#include<cstdio>


int min(int a, int b)
{
	if(a<b) return a;
	return b;
}


int main(void)
{
	int c[]={1,0,0,0,1,0,1,0,2,1};
	int n, r, hall;

	while(scanf("%d", &n)==1)
	{
		r=0;
		hall=0;
		do
		{
			hall+=c[n%10];
			r++;
			n/=10;
		}
		while(n>0);

		if(hall) printf("%d\n", min(r*2+hall+1, r+hall*2+2));
		else printf("%d\n", r+2);
	}
	return 0;
}