import sys input = sys.stdin.readline A=[] for i in range(1,10): for j in range(0,10): if i==j: continue A.append((i,j)) t=int(input()) for tests in range(t): N,K=list(map(int,input().split())) a=N*8 c=K//a r=K%a if r==0: r=a c-=1 #print(A[c]) X=A[c] #print(r) L=[] for i in range(10): if i in X: continue L.append(i) short=0 L1=[] L2=[] for x in L: if x