//Author:xht37
#include <bits/stdc++.h>

#define ui unsigned int
#define ll long long
#define ul unsigned ll
#define ld long double

#define pi pair <int, int>
#define fi first
#define se second
#define mp make_pair

#define ls (p << 1)
#define rs (ls | 1)
#define md ((t[p].l + t[p].r) >> 1)

#define vi vector <int>
#define pb push_back
#define pq priority_queue

#define dbg(x) cerr << #x" = " << x << endl
#define debug(...) fprintf(stderr, __VA_ARGS__)

#define fl(x) freopen(x".in", "r", stdin), freopen(x".out", "c", stdout)

using namespace std;

namespace io {
	const int SI = 1 << 21 | 1;
	char IB[SI], *IS, *IT, OB[SI], *OS = OB, *OT = OS + SI - 1, c, ch[100];
	int f, t;
	#define gc() (IS == IT ? (IT = (IS = IB) + fread(IB, 1, SI, stdin), IS == IT ? EOF : *IS++) : *IS++)
	inline void flush() {
		fwrite(OB, 1, OS - OB, stdout), OS = OB;
	}
	inline void pc(char x) {
		*OS++ = x;
		if (OS == OT) flush();
	}

	template <class I>
	inline void rd(I &x) {
		for (f = 1, c = gc(); c < '0' || c > '9'; c = gc()) if (c == '-') f = -1;
		for (x = 0; c >= '0' && c <= '9'; x = (x << 3) + (x << 1) + (c & 15), c = gc());
		x *= f;
	}
	template <class I>
	inline void rd(I &x, I &y) {
		rd(x), rd(y);
	}
	template <class I>
	inline void rd(I &x, I &y, I &z) {
		rd(x), rd(y), rd(z);
	}
	template <class I>
	inline void rda(I *a, int n) {
		for (int i = 1; i <= n; i++) rd(a[i]);
	}
	inline void rdc(char &c) {
		for (c = gc(); c < 33 || c > 126; c = gc());
	}
	inline void rds(char *s, int &n) {
		for (c = gc(); c < 33 || c > 126; c = gc());
		for (n = 0; c >= 33 && c <= 126; s[++n] = c, c = gc());
		s[n+1] = '\0';
	}
	inline void rds(string &s) {
		for (c = gc(); c < 33 || c > 126; c = gc());
		for (s.clear(); c >= 33 && c <= 126; s.pb(c), c = gc());
	}

	template <class I>
	inline void print(I x, char k = '\n') {
		if (!x) pc('0');
		if (x < 0) pc('-'), x = -x;
		while (x) ch[++t] = x % 10 + '0', x /= 10;
		while (t) pc(ch[t--]);
		pc(k);
	}
	template <class I>
	inline void print(I x, I y) {
		print(x, ' '), print(y);
	}
	template <class I>
	inline void print(I x, I y, I z) {
		print(x, ' '), print(y, ' '), print(z);
	}
	template <class I>
	inline void printa(I *a, int n) {
		for (int i = 1; i <= n; i++) print(a[i], " \n"[i==n]);
	}
	inline void printc(char c) {
		pc(c);
	}
	inline void prints(char *s, int n) {
		for (int i = 1; i <= n; i++) pc(s[i]);
		pc('\n');
	}
	inline void prints(string s) {
		int n = s.length();
		while (t < n) pc(s[t++]);
		pc('\n'), t = 0;
	}
	struct Flush {
		~Flush() {
			flush();
		}
	} flusher;
}
using io::rd;
using io::rda;
using io::rdc;
using io::rds;
using io::print;
using io::printa;
using io::printc;
using io::prints;

const int N = 2e6 + 7;
int n, m, k, a[N], b[N], s[N], t[N];
stack<pi> st;

inline void in(int *a, int n) {
	static char s[N];
	rds(s, n);
	for (int i = 1; i <= n; i++) a[n+1-i] = s[i] - '0';
}

inline void out(int *a) {
	int l = max(n, m) + k;
	while (!a[l]) --l;
	for (int i = l; i; i--) printc(a[i] + '0');
	printc('\n');
}

int main() {
	rd(n, m, k), in(a, n), in(b, m);
	for (int i = max(n, m); i; i--) {
		if (a[i] + b[i] == 1) st.push(mp(i, a[i] * 2 + b[i]));
		if (a[i] + b[i] <= 1) continue;
		int c = k, p = i, x = 3;
		stack<pi> sa;
		while (st.size()) {
			pi o = st.top();
			if (p == o.fi) {
				st.pop();
				if ((x ^ o.se) == 3) {
					x = 3;
					if (c) c--;
					else break;
				} else if (x == 3) x &= o.se, sa.push(mp(o.fi, o.se ^ 3));
				p++;
			} else if (x == 3 && o.fi - p <= c) c -= o.fi - p, p = o.fi;
			else break;
		}
		if (x == 3) s[p+c] = t[p+c] = 1;
		else sa.push(mp(p, x));
		while (sa.size()) st.push(sa.top()), sa.pop();
	}
	while (st.size()) {
		pi o = st.top();
		s[o.fi] += o.se >> 1 & 1, t[o.fi] += o.se & 1, st.pop();
	}
	out(s), out(t);
	return 0;
}

Measured memory_bytes: 31064