3≤N≤200000. 3 ≤ N ≤ 200 000.3≤N≤200000.
3≤M≤N. 3 ≤ M ≤ N.3≤M≤N.
1≤Vi≤1000000000(1≤i≤N). 1 ≤ Vi ≤ 1000 000 000 (1 ≤ i ≤ N).1≤Vi≤1000000000(1≤i≤N).
1≤Ci≤1000000000(1≤i≤N). 1 ≤ Ci ≤ 1000 000 000 (1 ≤ i ≤ N).1≤Ci≤1000000000(1≤i≤N).