#include<bits/stdc++.h>
#define ywj(a) freopen(#a".in","r",stdin); //freopen(#a".out","w",stdout);
#define wlp ios::sync_with_stdio(false);
#define f1(i,a,b) for(int i=a;i<=b;i++)
#define f2(i,a,b) for(int i=a;i>=b;i--)
#define maxn 30005
using namespace std;
int wot(int x){
    int ans=0;
    while(x!=0){
        ans++;
        x/=10;
    }
    return ans;
}
string s[maxn];
int main(){
//  ywj(c)
    wlp;
    int xp=0;
    int op=0;
    while(getline(cin,s[++xp]));
    int cur=wot(xp);
    f1(i,1,xp-1){
        op++;
        int tmp=cur-wot(op);
        f1(j,1,tmp) cout<<" ";
        cout<<op<<" ";
        cout<<s[i]<<endl;
    }
    return 0;
}