#include<bits/stdc++.h>
using namespace std;
#define FR0(i,N) for(i=0;i<(N);i++)
#define FR1(i,N) for(i=1;i<=(N);i++)
#define FRN(i,k,N) for(i=k;i<(N);i++)
#define pf printf
#define db double
#define max3(a,b,c) max(max(a,b),c)
#define min3(a,b,c) min(min(a,b),c)
#define sci(n) scanf("%d",&n)
#define scl(n) scanf("%lld",&n)
#define scf(n) scanf("%f",&n)
#define scd(n) scanf("%lf",&n)
#define scs(s) scanf("%s",&s)
#define scll(n) scanf("%%I64d",&n)
#define PI acos(-1.0)
#define LL long long
#define MX 1000005
#define MOD 1000000007
typedef long long int ll;
bool status[1100002];
int dp[1010][1010];
int x[1000],y[1000];
int lcs(int m,int n)
{
memset(dp,0,sizeof(dp));
for(int i=1; i<=m; i++)
{
for(int j=1; j<=n; j++)
{
if(x[i]==y[j])
{
dp[i][j]=dp[i-1][j-1]+1;
}
else
{
dp[i][j]=max(dp[i-1][j],dp[i][j-1]);
}
}
}
return dp[m][n];
}
int main()
{
int m,n,t=1;
while(cin>>m>>n)
{
if(m==0 && n==0)
{
break;
}
for(int i=1; i<=m; i++)
{
cin>>x[i];
}
for(int j=1; j<=n; j++)
{
cin>>y[j];
}
int res=lcs(m,n);
//cout<<res<<endl;
cout<<"Twin Towers #"<<t++<<endl;
cout<<"Number of Tiles : "<<res<<endl<<endl;
}
}
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