If ana_nan is an arithmetic sequence such that a1+a2+⋯+ap=a1+a2+⋯+aqa_1 + a_2 + \dots + a_p = a_1 + a_2 + \dots + a_qa1+a2+⋯+ap=a1+a2+⋯+aq (p≠qp \neq qp=q), what is a1+a2+⋯+ap+qa_1 + a_2 + \dots + a_{p+q}a1+a2+⋯+ap+q?
000
p+qp+qp+q
p−qp-qp−q
111