exercise_1_13.c

#include <stdio.h>

main()
{
    int c;
    int len;

    len = 0;
    while ((c = getchar()) != EOF)
    {
        if (c != ' ' && c != '\n')
            len++;
        else
        {
            printf("%d\n", len);
            len = 0;
        }
    }
}