import sys
input = sys.stdin.readline

X,Y,N=map(int,input().split())

for i in range(N):
    x,y=map(int,input().split())

    if x==y:
        print(0)
        continue

    if x>y:
        x,y=y,x

    if x==0:
        k=(y-1)%Y

        print(k+1)
        continue

    a,b=(x-1)//Y,(x-1)%Y
    c,d=(y-1)//Y,(y-1)%Y

    if a==c:
        print(abs(b-d))
    else:
        print(b+d+2)