#include<bits/stdc++.h>
using namespace std;

//----------------------DEBUGGER---------------------//

void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}


#ifdef LOCAL
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

//----------------------------Debugger End--------------------------//

#define ll long long
#define pb push_back
#define M 1000000007


int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    #ifdef LOCAL
    freopen("in", "r", stdin);
    freopen("out", "w", stdout);
    #endif

    ll t,i,j,k,n,flag;
    string s;

    cin>>t;

    while(t--)
    {
        cin>>s;
        n=s.size();
        // vector<ll>v(n);
        flag=0;

        for(i=0;i<n-1;i++)
        {
            if(s[i]=='1' && s[i+1]=='1' && flag==0)
            {
                flag=1;
            }

            if(s[i]=='0' && s[i+1]=='0' && flag==1)
            {
                flag=2;
                break;
            }

        }

        if(flag!=2) cout<<"YES"<<endl;
        else cout<<"NO"<<endl;


    }   
}

