The complete route

All we need do now is join the departure, NAT and arrival routes to create a complete ICAO Flight Plan which can be decoded by the FMS, and filed in IvAp:

N0457F370 MERIT DCT HFD DCT PUT DCT BOS DCT KANNI N43A COLOR/M081F380 NATW DOLIP/N0489F390 UN523 CRK UL607 NUMPO Y3 BEDEK OCK2F

It is also essential to put the Track Identification number (TMI) in the remarks of your flight plan (RMK/TMI068).