
void main()
{
	int i,n,sum=0;
	char *p;//???????????
	scanf("%d",&n);//??????
    p=(char *)malloc(40);
	scanf("%s",p);
	sum+=strlen(p);
	printf("%s",p);//????????????????
	for(i=1;i<n;i++)
	{
		p=(char *)malloc(40);
		scanf("%s",p);
		sum+=strlen(p)+1;//????????
		if(sum<80)
			printf(" %s",p);
		else
			if(sum==80)
			{
				printf(" %s\n",p);//?????
				free(p);p=(char *)malloc(40);//??p?????????????????
				scanf("%s",p);
				printf("%s",p);
				sum=strlen(p);//????????????????
				i++;//??????????
			}
			else
			{
				printf("\n%s",p);//?????????????
				sum=strlen(p);//??
			}
	}
	printf("\n");
}