#include using namespace std; #define inf INT_MAX #define INF LLONG_MAX #define ll long long #define ull unsigned long long #define M (int)(1e9+7) #define P pair #define FOR(i,m,n) for(int i=(int)m;i<(int)n;i++) #define RFOR(i,m,n) for(int i=(int)m;i>=(int)n;i--) #define rep(i,n) FOR(i,0,n) #define rrep(i,n) RFOR(i,n,0) #define all(a) a.begin(),a.end() const int vx[4] = {0,1,0,-1}; const int vy[4] = {1,0,-1,0}; #define F first #define S second #define PB push_back #define EB emplace_back #define int ll #define vi vector #define IP pair #define PI pair #define PP pair #define Yes(f){cout<<(f?"Yes":"No")<>n>>m; rep(i,n+1){ nextl[i]=i+1; c[i]=-1; } while(m--){ int l,r; char d; cin>>l>>r>>d; l--;r--; int k; if(d=='Y') k=0; else if(d=='K') k=1; else k=2; while(l<=r){ if(c[l]==-1){ c[l]=k; } int nl=nextl[l]; nextl[l]=max(nextl[l],r+1); l=nl; } } int cnt[3]={}; rep(i,n){ if(c[i]==-1) continue; cnt[c[i]]++; } cout<