#pragma GCC optimize("O3") #include using namespace std; using ll=long long; using ull=unsigned long long int; using P=pair; template using V=vector; #define fi first #define se second #define all(v) (v).begin(),(v).end() const ll inf=(1e18); const ll mod=1000000007; ll gcd(ll a,ll b) {return b ? gcd(b,a%b):a;} ll lcm(ll c,ll d){return c/gcd(c,d)*d;} struct __INIT{__INIT(){cin.tie(0);ios::sync_with_stdio(false);cout< bool chmax(T &a, const T &b) { if (a bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; } ll dp[1005][1005]; int main(){ for(int i=0;i<1005;i++)for(int j=0;j<1005;j++)dp[i][j]=inf; int n,m; cin>>n>>m; string s,t; cin>>s>>t; dp[0][0]=0; for(int i=0;i