// what is matter? never mind. 
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,sse4,popcnt,abm,mmx,avx,avx2") 
#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
#define ll long long
//#define int long long
#define ull unsigned long long
#define SZ(x) ((int)((x).size()))
#define ALL(x) (x).begin(),(x).end()
using namespace std;
inline int read()
{
    char c=getchar();int x=0;bool f=0;
    for(;!isdigit(c);c=getchar())f^=!(c^45);
    for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
    if(f)x=-x;return x;
}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define maxn 1000005
#define inf 0x3f3f3f3f

int n,c1,c2;
char s[maxn];

signed main()
{
	n=read(),c1=read(),c2=read();
	int res=(1ll*c1*c2+n-1)/n;
	cout<<res<<"\n";
	int p=0;
	For(i,0,n-1)s[i]='0';
	For(_,1,c2){
		while(s[p]=='1')p=(p+1)%n;
		s[p]='1',p=(p+c1)%n;
	}
	For(i,1,c1)cout<<'1'; For(i,1,n-c1)cout<<'0'; cout<<"\n";
	For(i,0,n-1)cout<<s[i]; cout<<"\n";
	return 0;
}