#include using namespace std; typedef signed long long ll; #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) template 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;} //------------------------------------------------------- int N,K; const ll mo=998244353; ll fromp[202][202]; ll froms[202][202]; ll ps[202]; ll ss[202]; ll top[202][202]; ll tos[202][202]; void solve() { int i,j,k,l,r,x,y; string s; cin>>N>>K; FOR(x,K) FOR(y,K) if(x!=y) { fromp[x][y]=1; froms[x][y]=x+y; } FOR(i,N-2) { ZERO(top); ZERO(tos); FOR(y,K) { FOR(x,K) { ps[x+1]=(ps[x]+fromp[x][y])%mo; ss[x+1]=(ss[x]+froms[x][y])%mo; } FOR(x,K) { if(xy) { top[y][x]=((ps[K]-ps[y])+mo-fromp[x][y])%mo; tos[y][x]=((ss[K]-ss[y])+mo-froms[x][y]+x*top[y][x])%mo; } } } swap(fromp,top); swap(froms,tos); } ll ret1=0,ret2=0; FOR(x,K) FOR(y,K) { ret1+=fromp[x][y]; ret2+=froms[x][y]; } cout<