line folder

#include<stdio.h>
#define LINESIZE 20
int main()
{
        int c, cnt, i, lspc;
        char charray[LINESIZE];
        for(cnt = 0;cnt < LINESIZE; cnt++)
                charray[cnt] = 0;
        cnt = 0;
        lspc = -1;

        while((c = getchar()) != EOF) {
                if(cnt < LINESIZE) {
                        if(c == '\n') {
                                for(i = 0;i < cnt;i++)
                                        putchar(charray[i]);
                                for(i = 0;i < cnt;i++)
                                        charray[i] = 0;
                        } else {
                                if(c == ' ')
                                        lspc = cnt;
                                charray[cnt++] = c;
                        }

                } else {
                        if(c == ' ' || c == '\n') {
                                for(i = 0;i < cnt;i++)
                                        putchar(charray[i]);
                                for(i = 0;i < cnt;i++)
                                        charray[i] = 0;
                        } else {
                                if(lspc != -1) {
                                        for(i = 0;i < lspc;i++)
                                                putchar(charray[i]);
                                        for(i = 0;i < cnt;i++)
                                                charray[i] = 0;
                                } else {
                                        for(i = 0;i <= cnt;i++)
                                                putchar(charray[i]);
                                        for(i = 0;i <= cnt;i++)
                                                charray[i] = 0;
                                        putchar('-');
                                }
                        }
                        putchar('\n');
                        lspc = -1;
                        cnt = 0;
                }
        }
        return 0;
}