#include<bits/stdc++.h>
using namespace std;
string s="QWERTYUIOPASDFGHJKLZXCVBNM";
int  ans;
struct a
{
	int x,y;
} poz[300],poz1,poz2;
int dist(a x, a y)
{
	return (abs(x.x - y.x) + abs(x.y - y.y));
}
int rec(int cur, int ans, a f, a j)
{
	if(cur >= s.length())return ans;
	a next = poz[s[cur]];
	if(dist(f,next) == dist(j,next)) return min(rec(cur+1,ans+dist(j,next),next,j), rec(cur+1,ans+dist(f,next),f,next));
	else if(dist(f,next) < dist(j,next)) ans += dist(f,next),f = next;
			else ans+=dist(j,next),j = next;
	return rec(cur+1,ans,f,j);
}
int main()
{
	int o = 0;
	for (int i = 1; i<=10; i++)
	{
		poz[s[o]].x = 1;
		poz[s[o]].y = i;
		o++;
	}
	for (int i = 1; i<=9; i++)
	{
		poz[s[o]].x = 2;
		poz[s[o]].y = i;
		o++;
	}
	for (int i = 1; i<=8; i++)
	{
		poz[s[o]].x = 3;
		poz[s[o]].y = i;
		o++;
	}
	
	poz1.x = poz['F'].x, poz1.y=poz['F'].y;
	poz2.x = poz['J'].x, poz2.y=poz['J'].y;
	cin >> s;
	cout << rec(0,0,poz1,poz2);
}