Luke is trying to solve the puzzle problem during Mathematics class hour. He has a graph paper with G X N rows and columns, and the puzzle question is, an NCC training base in each cell for a total of G X N bases. He wants to drop food items to every point based on strategic points on the graph paper, marking each drop point with a red dot. If a base contains at least one food package inside or on top of its border fence, then it’s considered to be supplied.

For example: if Luke has four bases in a 2×2 grid. If he drops a single food package where the walls of all four bases intersect, then those four cells can access the food package.

Given G and N, what’s the minimum number of packages that Luke must drop to supply all of his bases?

Example :

G=2, N=3.

Food Packages can be dropped at the corner between cells (0, 0), (0, 1), (1, 0), (1, 1) , (0, 2) and (1, 2). This supplies all bases using packages.

Function Description:

*G:*the number of rows*N:*the number of columns

**Input:**
Two space-separated integers describing the respective values of G and N.
**Output:**
The only line of output has single integer indicating the minimum number of food packages required

**Explanation**

Luke has four bases in a 2X2 grid. If he drops a single package where the walls of all four bases intersect, then those four cells can access the package:

Because he managed to supply all four bases with a single supply drop, we print 1 as our answer.

#include <stdio.h> int NccCells(int x,int y) {int package; package=((x+1)/2)*((y+1)/2); return package; } int main() {int G,N; scanf("%d %d",&G,&N); int package; package=NccCells(G,N); printf("%d",package); return 0; }

**INPUT_1:**

2 2

**OUTPUT:**

1

**INPUT_2:**

1 4

**OUTPUT:**

2

Morae Q!

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