/*??
 ???????????????????????????????????????????????????
 ?????80???????????????????????????????????????????
 ????
 ????????n?????????????. ???n??????????????????????????????????????40?????
 ????
 ??????????????????80????????????????????????????*/
int main()
{
    int n=0,sum=0,length=0;
    char *p=NULL;
    char istring[30];
    cin>>n;
    p=istring;memset(istring,'\0',sizeof(istring));
    cin>>istring;
    cout<<istring;
    sum=strlen(istring);
    for(int i=0;i<n-1;i++)
    {
        
        memset(istring,'\0',sizeof(istring));
        cin>>istring;
        length=strlen(istring);
        if(sum+length+1>80)
        {
            cout<<endl;
            sum=length;
            cout<<istring;
        }
        else
        {
            sum=sum+length+1;
            cout<<" "<<istring;
            
        }
    }
    return 0;
}
