UVA 12243 Flowers Flourish from France (UVALive 4810, SPOJ MFLAR10, Regionals 2010 >> Latin America)

///     Raihan Ruhin
///     CSE, Jahangirnagar University.
///     Dhaka-Bangladesh.
///     id: raihanruhin (topcoder / codeforces / codechef / uva / uvalive), 3235 (lightoj)
///     mail: raihanruhin@ (yahoo / gmail / facebook)
///     blog: ruhinraihan.blogspot.com

#include<bits/stdc++.h>
using namespace std;

#define SET(a) memset(a,-1,sizeof(a))
#define CLR(a) memset(a,0,sizeof(a))
#define PI acos(-1.0)

#define MOD 1000000007
#define MX 100010


int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    int tc, kk=1, n, m, x, y, a, b, c;
    string s;
    while(getline(cin, s) && s!="*")
    {
        char st=s[0];
        st=tolower(st);
        bool chk=true;
        for(int i=0;i<s.size()-1;i++)
            if(s[i]==' ')
                if(st!=tolower(s[i+1]))
                    chk=false;
        if(chk)   cout<<"Y\n";
        else      cout<<"N\n";
    }
return 0;
}