#include <stdio.h>

#define IN  1
#define OUT 0

int main() {

    int c, state;
    state = IN;
    while ((c = getchar()) != EOF) {
        if ((c == ' ') || (c == '\t') || (c == '\n')) {
            state = OUT;
            while (state == OUT) {
                c = getchar();
                if ((c != ' ') && (c != '\t') && (c != '\n')) {
                    printf("\n%c", c);
                    state = IN;
                }
            }
        }
        else printf("%c", c);
    }

    return 0;
}