#include <bits/stdc++.h> using namespace std; int main(){ int long long a[21]={0}; int long long x, cnt = 0; while(cin >> x){ cnt++; a[x]++; } int long long d=a[20]; cout << cnt << endl; cout<<a[0]<<" "; cout<<a[1]<<" "; cout<<a[2]<<" "; cout<<a[3]<<" "; cout<<a[4]<<" "; cout<<a[5]<<" "; cout<<a[6]<<" "; cout<<a[7]<<" "; cout<<a[8]<<" "; cout<<a[9]<<" "; cout<<a[10]<<" "; cout<<a[11]<<" "; cout<<a[12]<<" "; cout<<a[13]<<" "; cout<<a[14]<<" "; cout<<a[15]<<" "; cout<<a[16]<<" "; cout<<a[17]<<" "; cout<<a[18]<<" "; cout<<a[19]<<" "; cout<<d<<" "; }