J=lambda:map(int,input().split())
N,Q=J()
C=[0]
for a in J():C+=[C[-1]+a]
for q in[0]*Q:
	x,*_=J();l,r=0,N+1
	while l<r-1:
		m=(l+r)>>1
		if C[m]>x:r=m
		else:l=m
	print(l)