#include #include #include using namespace std;int day(const string&s){static const string d[7]={"MON","TUE","WED","THU","FRI","SAT","SUN"};for(int i=0;i<7;++i)if(s==d[i])return i;return 0;}int inv7(int x){for(int y=1;y<7;++y)if(x*y%7==1)return y;return 0;} int main(){ios::sync_with_stdio(false);cin.tie(nullptr);int n,m;while(cin>>n>>m&&n+m){vector>a(m,vector(n+1));for(int i=0;i>k>>s>>t;a[i][n]=(day(t)-day(s)+1+7)%7;while(k--){int x;cin>>x;a[i][x-1]=(a[i][x-1]+1)%7;}}int row=0;vectorwhere(n,-1);for(int col=0;col