For a binary string $w = w_1w_2 \dots w_l$ of length $l$, we define its support sequence $\text{supp}(w)$ as the subsequence of $[1, 2, \dots, l]$ such that $i \in \text{supp}(w)$ if and only if $w_i = 1$. For example, $\text{supp}(001100110) = [3, 4, 7, 8]$. Specifically, the support sequence of the all-zero string is the empty sequence $\varepsilon$.
Given a set $S$ of $n$ binary strings $s_1, s_2, \dots, s_n$, each of length $m$. Given $q$ queries, where the $i$-th query provides a binary string $t_i$ of length $m$. You need to output a binary string $u_i$ of length $m$ that satisfies the following conditions:
- There exists a subset $T$ of $S$ (where $T$ can be empty or $S$ itself) such that $u_i = t_i \oplus (\bigoplus_{v \in T} v)$, where $\oplus$ denotes the bitwise XOR operation, meaning $u_i$ is the XOR sum of $t_i$ and all strings in $T$.
- Subject to the above condition, the support sequence of $u_i$ is lexicographically as small as possible.
For two sequences $A$ and $B$, $A$ is lexicographically smaller than $B$ if and only if $A$ is a proper prefix of $B$, or at the first position $p$ where $A$ and $B$ differ, $A_p < B_p$.
Input
The first line contains three positive integers $n, m, q$ ($1 \le n, m, q \le 2000$), representing the size of the set $S$, the length of the binary strings, and the number of queries, respectively.
The next $n$ lines each contain a binary string $s_i$ of length $m$.
The last $q$ lines each contain a binary string $t_i$ of length $m$, describing a query.
Output
For each query $i$, output a single line containing the binary string $u_i$ of length $m$ that satisfies the conditions.
Examples
Input 1
1 1 3 2 2 110 3 010 4 101
Output 1
100 101
Note
For the first test case, the strings satisfying the first condition are $010$ and $100$. Their support sequences are $\text{supp}(010) = [2]$ and $\text{supp}(100) = [1]$, respectively. The lexicographically smaller one is $[1]$.
For the second test case, the strings satisfying the first condition are $101$ and $011$. Their support sequences are $\text{supp}(101) = [1, 3]$ and $\text{supp}(011) = [2, 3]$, respectively. The lexicographically smaller one is $[1, 3]$.
Input 2
2 4 4 1100 1010 1000 0001 0110 0011
Output 2
1000 1101 0000 1111
Note
For the first test case, the strings satisfying the first condition are $1000, 0100, 0010$, and $1110$, among which the lexicographically smallest support sequence is $\text{supp}(1000) = [1]$.
For the second test case, the strings satisfying the first condition are $0001, 1101, 1011$, and $0111$, among which the lexicographically smallest support sequence is $\text{supp}(1101) = [1, 2, 4]$.
For the third test case, the strings satisfying the first condition are $0110, 1010, 1100$, and $0000$, among which the lexicographically smallest support sequence is $\text{supp}(0000) = \varepsilon$, the empty sequence.
For the fourth test case, the strings satisfying the first condition are $0011, 1111, 1001$, and $0101$, among which the lexicographically smallest support sequence is $\text{supp}(1111) = [1, 2, 3, 4]$.
Input 3
3 9 7 011001111 101110001 110010100 010110110 101010100 000101101 001011100 100011111 100111000 001000101
Output 3
111101101 110110001 110111001 111100010 111111010 111110111 111111011
Input 4
9 24 9 100001011101000000000000 100011001100100001000000 010101000010100111110100 101110000010101110110010 100110110010011100000000 111111000010100101111011 000010110001001011010101 010101100111000010100111 111001111111000000000000 111000110110110000000000 011100101000100001000000 101001101000111011001100 100011100011110001000000 100001001011000000000000 101110110001111100000000 100011100101100010110000 101001001100101011000000 100101100110100111000000
Output 4
111111111100001001010011 111111101111001101010101 111111101100001011000101 111111101101110101111011 111111111111000010111011 111111111111110101011010 111111101110101001001101 111111101101111110011010 111111111110100001000000
Hint
What does the problem name mean?