Daytrip SPb-Veliky Novgorod on RZD's Lastochka fast train. We have paper printouts of our internet-purchased train tickets. We also have good color photocopies of our US passports and originals of US drivers' licenses and student IDs. Can we bring the original passports instead of the photocopies would if that's not necessary would rather leave the passports under lock and key in SPb. Do we need the originals? We will not be able to check at the train station and return to our SPb lodging to pick up the originals if we do need them. Thanks in advance for any clear guidance.