Расшифровка кода:
K'o oggvkpi oa htkgpfu qp Ucvwtfca gxgpkpi cpf yg'tg iqkpi vq ugg c hkno cv vjg ekpgoc. Im meeting my friends on Saturday.
Предполагаемый ключ: смещение на 5 букв вперед (A->F, B->G, ... Z->E).
Sophie's plans: I'm meeting my friends on Saturday.
Dgp cpf K ctg iqkpi vq c tqem eqpegtv kp Nkxgtrqqn. Qwt vtckp ngcxgu cv vjtgg q'enqem.
Предполагаемый ключ: смещение на 5 букв вперед.
Matt's plans: And you are going to a concert at the stadium. Our tickets are amazing.
Итого:
Sophie's secret plan: I'm meeting my friends on Saturday.
Matt's secret plan: And you are going to a concert at the stadium. Our tickets are amazing.