Seven friends, P, Q, R, S, T, U, and V, are sitting in a circle in that order. They play a counting game starting with P saying '1'. They continue counting around the circle (Q says '2', R says '3', and so on). If the number someone says contains a as a digit or is a multiple of , that person leaves the circle. The counting continues from the next person in the circle, starting with the next integer. Who is the last person remaining?
P
Q
R
S
U