Find the smallest positive integer xxx such that x≡1(mod3)x \equiv 1 \pmod{3}x≡1(mod3), x≡2(mod5)x \equiv 2 \pmod{5}x≡2(mod5), x≡3(mod7)x \equiv 3 \pmod{7}x≡3(mod7).
157157157
535353
525252
103103103