Q=int(input())
for _ in range(Q):
  S,M=input().split()
  M=int(M)
  N=len(S)
  u=[1]*N
  mod=M
  if M==1:
    print(0)
    continue
  for i in range(1,N):
    u[i]=u[i-1]*10
    u[i]%=mod
  x=0
  for i in range(N):
    x+=int(S[-(i+1)])*u[i]
    x%=mod
  if M%2==1:
    result=x*(x+1)
    result%=mod
    result*=pow(2,-1,mod)
    result%=mod
    print(result)
  else:
    result=x*(x+1)//2
    result%=mod
    print(result)