#include<stdio.h>
#include<string.h>
int main()
{
   char s[255];
   gets(s);
   int countword=0,countchar=0;
   int arr[100];
   for(int i=0;s[i]!='\0';i++)
   {
       if((s[i]>='A' && s[i]<='Z') || (s[i]>='a' && s[i]<='z'))
       {
           countchar++;
       }
       else
       {
           if(countchar!=0)
           {
           arr[countword]=countchar;
           countchar=0;
           countword++;
           }
           else
            continue;
       }
   }
   printf("%d\n",countword);
   for(int i=0;i<countword;i++)
   {
       printf("%d ",arr[i]);
   }
   printf("\n");


}