Chess Beginner Bushil

Time limit1sMemory limit1024 MB

Summary

Given an 8x8 chess board, compute White's piece score minus Black's piece score using the standard point values for each piece.

Level: Easy1 of 10
Topics: Implementation
Solved: No attempts yet

Problem

Bushil has just started learning chess and is still a beginner, so he is not good at calculating piece scores on the board.

The piece score of a board is the sum of White's piece scores minus the sum of Black's piece scores. The scores of king, pawn, knight, bishop, rook, and queen are $0$ , $1$ , $3$ , $3$ , $5$ , and $9$ points, respectively.

Help the beginner Bushil by computing the piece score of a chess board.

Input

The next 8 lines give the state of an $8\times8$ chess board with no spaces. White pieces are uppercase letters and Black pieces are lowercase letters.

The input consists only of ., K, k, P, p, N, n, B, b, R, r, Q, and q. Each character means:

.: empty square
K or k: king
P or p: pawn
N or n: knight
B or b: bishop
R or r: rook
Q or q: queen

Output

Print the piece score of the given chess board.

Examples3

Example 1

Input

rnbqkbnk
pppppppp
........
........
........
........
PPPPPPPP
RNBQKBNK

Expected output

Example 2

Input

RRRRRRRR
RRRRRRRR
RRRRRRRR
RRRRRRRR
rrrrrrrr
rrrrrrrr
rrrrrrrr
rrrrrrrk

Expected output

Example 3

Input

rrrrrrrr
rrrrrrrr
rrrrrrrr
rrrrrrrr
rrrrrrrr
rrrrrrrr
rrrrrrrr
rrrrrrrr

Expected output

-320