#include<iostream>
using namespace std;
#include<string>
#include<cmath>
#include<climits>
char a, b = '0';
int ans[40001];
int main()
{
	int k=0;
	int count = 0;
	while (cin >> a)
	{
		count++;
		if (a == b) ans[k]++;
		else ans[++k]++, b = a;
	}
	cout << sqrt(count) << " ";
	for (int i = 0; i <= k; i++)
	{
		cout << ans[i] << " ";
	}
	
	return 0;
}

在vs里面输入输不尽，但在luogu却是ac