Problem: 2050C - Uninteresting Number
Language: python

Solution 1 (runtime: 249 ms):
for i in range(int(input())):
    n=(input())
    a=0
    for i in n:
        a+=int(i)
    a=a%9
    a=9-a
    if a==9:
        print("YES")
    else:
        if a%2!=0:
            p=0
            q=0
            for i in n:
                if i=="2":
                    p+=1
                if i=="3":
                    q+=1
            if a==1:
                if p>=5 or (p>=2 and q>=1):
                    print("YES")
                else:
                    print("NO")
            elif a==3:
                if q>=2 or p>=6 or (q>=1 and p>=3):
                    print("YES")
                else:
                    print("NO")
            elif a==5:
                if p>=7 or (q>=1 and p>=4) or (q>=2 and p>=1):
                    print("YES")
                else:
                    print('NO')
            else:
                if p>=8 or (q>=1 and p>=5) or (q>=2 and p>=2):
                    print("YES")
                else:
                    print("NO")
        else:
            if a<6:
                a=a//2
                ans=0
                for i in n:
                    if i=="2":
                        ans+=1
                if ans>=a:
                    print("YES")
                else:
                    print("NO")
            else:
                if a==6:
                    a=a//2
                    ans=0
                    for i in n:
                        if i=="2":
                            ans+=1
                    if ans>=a:
                        print("YES")
                    else:
                        for i in n:
                            if i=="3":
                                print("YES")
                                break
                        else:
                            print("NO")
                else:
                    a=a//2
                    ans=0
                    for i in n:
                        if i=="2":
                            ans+=1
                    if ans>=a:
                        print("YES")
                    else:
                        if ans<1:
                            print("NO")
                        else:
                            for i in n:
                                if i=="3":
                                    print("YES")
                                    break
                            else:
                                print("NO")

Solution 2 (runtime: 171 ms):

def digit_sum(n):
    if n[0] == '-':
        return digit_sum(n[1:])
    counter = 0
    for i in n:
        counter += int(i)
    return counter

def check(n):
    k = digit_sum(n)
    if k % 9 == 0:
        return 'YES'
    n_2 = n.count('2')
    n_3 = n.count('3')
    seen_2 = set()
    for i in range(n_2+1):
        if (i * 2) % 9 in seen_2:
            break
        seen_2.add((i*2)%9)
        for j in range(n_3 + 1):
            if n[0] != '-':
                if (k + i * 2 + j * 6) % 9 == 0:
                    return 'YES'
            else:
                if (k - i * 2 - j * 6 % 9) == 0:
                    return 'YES'
    return 'NO'


for i in range(int(input())):
    print(check(input()))