#include<bits/stdc++.h>
using namespace std;
#define int long long
#define f(i,j,k) for(int i=j;i<=k;++i)
#define g(i,j,k) for(int i=j;i>=k;--i)
int n,m,s,l;
const int N=2e6;
char c[N];
int a[N],b[N];
signed main(){
	cin>>n>>m;
	scanf("%s",c+1);
	f(i,1,n)a[i]^=c[i];
	scanf("%s",c+1);
	f(i,1,n)a[i]^=c[i];
	++n;
	f(i,1,n)b[i%m]^=a[i]^a[i-1];
	f(i,0,m)if(b[i])cout<<"No\n",exit(0);
	cout<<"Yes\n";
	return 0;
}