#include <stdio.h>
#include <cstring>
using namespace std;
int pi[2000005],nr,v[1005];
char a[2000005],b[2000005];
int main()
{
    freopen(".in", " ", stdin);
	freopen(".out", "r", stdout);
	fgets(a,sizeof(a),stdin);
	printf("%d\n",'2');
    /*in>>a>>b;
    int n=strlen(a),k=-1;
    pi[0]=0;
    for(int i=1; i<n; ++i)
    {
        while(k>-1 && a[k+1]!=a[i])
            k=pi[k];
        if(a[k+1]==a[i])
            ++k;
        pi[i]=k;
    }
    int m=strlen(b),q=-1;
    for(int i=0; i<m; ++i)
    {
        while(q>-1 && a[q+1]!=b[i])
            q=pi[q];
        if(a[q+1]==b[i])
            ++q;
        if(q==n-1)
        {
            ++nr;
            if(nr<=1000)
                v[nr]=i-n+1;
        }
    }
    out<<nr<<"\n";
    int lo=min(nr,1000);
    for(int i=1; i<=lo; ++i)
        out<<v[i]<<" ";*/
}