dubstep

#include<stdio.h>
#include<string.h>
int main(void)
{
    char dubstep[1000], words[1000];
    int len, i,  j = 0;
    scanf("%s", dubstep);
    len = strlen(dubstep);
    for(i = 0; i < len;)
    {
        if(dubstep[i] == 'W' && dubstep[i+1] =='U' && dubstep[i+2] =='B')  i += 3;
        else
        {
            words[j] = dubstep[i];
            j++;
            i++;
            if(dubstep[i] == 'W' && dubstep[i+1] =='U' && dubstep[i+2] =='B')
            {
                words[j] = ' ';
                j++;
            }
        }
    }

    words[j] = '\0';
    printf("%s", words);
    return 0;
}