Problem:
Score : 100 points

Problem Statement

Snuke is going to open a contest named "AtCoder s Contest".
Here, s is a string of length 1 or greater, where the first character is an uppercase English letter, and the second and subsequent characters are lowercase English letters.

Snuke has decided to abbreviate the name of the contest as "AxC".
Here, x is the uppercase English letter at the beginning of s.

Given the name of the contest, print the abbreviation of the name.

Constraints

The length of s is between 1 and 100, inclusive.

The first character in s is an uppercase English letter.

The second and subsequent characters in s are lowercase English letters.

Input

The input is given from Standard Input in the following format:

AtCoder s Contest

Output

Print the abbreviation of the name of the contest.

Sample Input 1

AtCoder Beginner Contest

Sample Output 1

ABC

The contest in which you are participating now.

Sample Input 2

AtCoder Snuke Contest

Sample Output 2

ASC

This contest does not actually exist.

Sample Input 3

AtCoder X Contest

Sample Output 3

AXC

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Deque;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;

public class Main {
	final int _intMax = Integer.MAX_VALUE; //=2147483647>10^9
	final int _intMin = Integer.MIN_VALUE;
	final long _longMax = Long.MAX_VALUE; //=9223372036854775807L>10^18
	final long _longMin = Long.MIN_VALUE;
	static boolean bElapsed = false;

	void solve() {
		String line = readLine();
		pln("A"+line.substring(8, 9)+"C");
	}

	class RMQ {
		int n;
		int[] element;
		public RMQ(int n) {
			n = (int)ceil2pow(n);
			this.n = n;
			element = new int[2*n-1];
			Arrays.fill(element, _intMax);
		}
		public void update(int k, int a) {
			k += n-1;
			element[k] = a;
			while (k > 0) {
				k = (k-1)/2;
				element[k] = Math.min(element[2*k+1], element[2*k+2]);
			}
		}
		public int query(int a, int b) {
			if (a == b) return element[a+n-1];
			return query(a, b+1, 0, 0, n);
		}
		private int query(int a, int b, int k, int l, int r) {
			if (r <= a || b <= l) return _intMax;
			if (a <= l && r <= b) return element[k];
			int vl = query(a, b, 2*k+1, l, (l+r)/2);
			int vr = query(a, b, 2*k+2, (l+r)/2, r);
			return Math.min(vl, vr);
		}
		public void print() {
			for (int i=0; i<element.length; i++) {
				String v = element[i] != _intMax ? ""+element[i] : "-";
				p(v+" ");
			}
			pln("");
		}
	}
	class RMQIndex {
		int n;
		int[] element;
		int[] index;
		public RMQIndex(int n) {
			n = (int)ceil2pow(n);
			this.n = n;
			element = new int[2*n-1];
			index = new int[2*n-1];
			Arrays.fill(element, _intMax);
			for (int i=0; i<n; i++) {
				index[n-1+i] = i;
			}
			for (int i=n-1-1; i>=0; i--) {
				index[i] = index[2*i+1];
			}
		}
		public void update(int k, int a) {
			k += n-1;
			element[k] = a;
			while (k > 0) {
				k = (k-1)/2;
				if (element[2*k+1] <= element[2*k+2]) {
					element[k] = element[2*k+1];
					index[k] = index[2*k+1];
				} else {
					element[k] = element[2*k+2];
					index[k] = index[2*k+2];
				}
			}
		}
		public int[] query(int a, int b) {
			if (a == b) return new int[] { element[a+n-1], index[a+n-1] };
			return query(a, b+1, 0, 0, n);
		}
		private int[] query(int a, int b, int k, int l, int r) {
			if (r <= a || b <= l) return new int[] { _intMax, 0 };
			if (a <= l && r <= b) return new int[] { element[k], index[k] };
			int[] vl = query(a, b, 2*k+1, l, (l+r)/2);
			int[] vr = query(a, b, 2*k+2, (l+r)/2, r);
			if (vl[0] <= vr[0]) {
				return new int[] { vl[0], vl[1] };
			} else {
				return new int[] { vr[0], vr[1] };
			}
		}
		public void print() {
			p("dat:");
			for (int i=0; i<element.length; i++) {
				String v = element[i] != _intMax ? ""+element[i] : "-";
				p(v+" ");
			}
			pln("");
			p("idx:");
			for (int i=0; i<index.length; i++) {
				p(index[i]+" ");
			}
			pln("");
		}
	}
	class UnionFind {
		int[] uf;
		public UnionFind(int n) {
			uf = new int[n];
			for (int i=0; i<n; i++) {
				uf[i] = i;
			}
		}
		public int root(int v) {
			if (uf[v] == v) return v;
			uf[v] = root(uf[v]);
			return uf[v];
		}
		public void merge(int u, int v) {
			u = root(u);
			v = root(v);
			if (u == v) return;
			uf[v] = u;
		}
		public boolean same(int u, int v) {
			return root(u) == root(v);
		}
		public void print() {
			for (int i=0; i<uf.length; i++) {
				p(uf[i]+" ");
			}
			pln("");
		}
	}
	class Pair {
		String a;
		String b;
		public Pair(String a, String b) {
			this.a = a;
			this.b = b;
		}
		public Pair(Pair pr) {
			this.a = pr.a;
			this.b = pr.b;
		}
		public boolean equals(Object o) {
			if (o instanceof Pair) {
				Pair that = (Pair)o;
				return (a.equals(that.a)) && (b.equals(that.b));
			}
			return false;
		}
		public int hashCode() {
			return a.hashCode() + (b.hashCode() * 31);
		}
		public String toString() {
			return "(" + a + ", " + b + ")";
		}
	}
	class Point {
		int x;
		int y;
		public Point(int x, int y) {
			this.x = x;
			this.y = y;
		}
		public Point(Point pt) {
			this.x = pt.x;
			this.y = pt.y;
		}
		public boolean equals(Object o) {
			if (o instanceof Point) {
				Point that = (Point)o;
				return (x == that.x) && (y == that.y);
			}
			return false;
		}
		public int hashCode() {
			return x + (y * 31);
		}
		public String toString() {
			return "(" + x + ", " + y + ")";
		}
	}
	class Info implements Comparable<Info> {
		int idx;
		int val;
		public Info(int idx, int val) {
			this.idx = idx;
			this.val = val;
		}
		public int compareTo(Info o) {
			if (idx < o.idx) return -1;
			else if (idx > o.idx) return 1;
			return 0;
		}
		public boolean equals(Object o) {
			if (o instanceof Info) {
				Info that = (Info)o;
				return 0 == compareTo(that);
			}
			return false;
		}
		public int hashCode() {
			return idx + (val * 31);
		}
		public String toString() {
			return "(" + idx + ", " + val + ")";
		}
	}
	class InfoComp implements Comparator<Info> {
		public int compare(Info o1, Info o2) {
			if (o1.val < o2.val) return -1;
			else if (o1.val > o2.val) return 1;
			return 0;
		}
	}
	long ceil2pow(long n) {
		if (n == 0) return 1;
		n--;
		n |= (n >>> 1);
		n |= (n >>> 2);
		n |= (n >>> 4);
		n |= (n >>> 8);
		n |= (n >>> 16);
		n++;
		return n;
		/*
		long pow = 1;
		while (pow < n) pow <<= 1;
		return pow;
		*/
	}
	int gcd(int a, int b) {
		if (a < b) return gcd(b, a);
		if (b == 0) return a;
		return gcd(b, a % b);
	}
	long sqrt(long n) {
		return (long)Math.sqrt(n);
	}
	long pow(long n, long p) {
		return (long)Math.pow(n, p);
	}
	long pow_mod(long n, long p, long m) {
		if (p == 0) return 1;
		else if (p % 2 == 1) return pow_mod(n, p-1, m) * n % m;
		long sum = pow_mod(n, p/2, m);
		return sum * sum % m;
	}
	int pint(String s) {
		return Integer.parseInt(s);
	}
	long plong(String s) {
		return Long.parseLong(s);
	}
	String readLine() {
		try {
			return _in.readLine();
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}
	int readNum() {
		String line = readLine();
		return pint(line);
	}
	String[] readFlds() {
		String line = readLine();
		return line.split(" ");
	}
	int[] readNums() {
		String[] flds = readFlds();
		int[] nums = new int[flds.length];
		for (int i=0; i<flds.length; i++) {
			nums[i] = pint(flds[i]);
		}
		return nums;
	}
	void p(char c) {
		_out.print(c);
	}
	void pln(char c) {
		_out.println(c);
	}
	void p(double d) {
		_out.print(d);
	}
	void pln(double d) {
		_out.println(d);
	}
	void p(long l) {
		_out.print(l);
	}
	void pln(long l) {
		_out.println(l);
	}
	void p(String s) {
		_out.print(s);
	}
	void pln(String s) {
		_out.println(s);
	}
	static BufferedReader _in;
	static PrintWriter _out;
	public static void main(String[] args) {
		long start = System.currentTimeMillis();
		_in = new BufferedReader(new InputStreamReader(System.in));
		_out = new PrintWriter(System.out);
		new Main().solve();
		_out.flush();
		long end = System.currentTimeMillis();
		if (bElapsed) {
			System.err.println((end-start) + "ms");
		}
	}
}