def Combi(a,b):# aは大きいが、bは小さいとき,modなし
    if b>a or b<0:
        return 0
    ANS=1
    for i in range(min(b,a-b)):
        ANS=ANS*(a-i)
 
    for i in range(min(b,a-b)):
        ANS=ANS//(min(b,a-b)-i)
 
    return ANS

T=int(input())
for tests in range(T):
    S=list(map(int,list(input())))

    if S==[0]*len(S):
        print(0)
        continue

    ANS=0

    for i in range(len(S)):
        if i>=1000 or len(S)-100>=1000:
            continue
        ANS+=Combi(len(S)-1,i)*S[i]
        ANS%=9

    if ANS==0:
        ANS=9

    print(ANS)