dp=[[False]*10001 for _ in range(101)]
dp[0][0]=True
for i in range(100):
    for j in range(10001):
        if j+i+1<=10001 and dp[i][j]:
            dp[i+1][j+i+1]=True
            dp[i+1][j]=True
T=int(input())
for _ in range(T):
    N=int(input())
    su=(N+1)*N//2
    if su%2==1:
        print(-1)
        continue
    if dp[N][su//2]:
        pos=su//2
        ans=[]
        for i in range(N-1,-1,-1):
            if dp[i][pos]:
                ans.append(0)
            elif dp[i][pos-i-1]:
                ans.append(1)
                pos=pos-i-1
        print(''.join([str(a) for a in ans[::-1]]))
    else:
        print(-1)