F

from sys import stdin


class Matrix:
    def __init__(self, arr):
        self.a = []
        for i in arr:
            self.a.append([])
            for j in i:
                self.a[-1].append(j)

    def __str__(self):
        res = ''
        for i in self.a:
            for j in i:
                res += str(j) + '\t'
            res = res[:-1] + '\n'
        return res[:-1]

    def size(self):
        return (len(self.a), len(self.a[0]))

    def __add__(self, m):
        res = []
        for i in range(len(self.a)):
            res.append([])
            for j in range(len(self.a[i])):
                res[-1].append(self.a[i][j]+m.a[i][j])
        return Matrix(res)

    def __mul__(self, v):
        res = []
        for i in range(len(self.a)):
            res.append([])
            for j in range(len(self.a[i])):
                res[-1].append(self.a[i][j]*v)
        return Matrix(res)

    __rmul__ = __mul__

exec(stdin.read())