import random

# 1
N = int(input("Введите N"))
mass = []
for i in range(N):
    mass.append([])
    for j in range(N):
        mass[i].append(random.randint(0, 10))

print(mass)

# 2
min = 100
for i in mass:
    for j in i:
        if j < min:
            min = j

print(min)

# 3
mymax = 0
for i in mass:
    for j in i:
        if j > mymax:
            mymax = j
print(mymax)

# 4
print([mass[i][i] for i in range(N)])

# 5
pobD = N
diagonal = []
for i in range(N):
    pobD = pobD - 1
    diagonal.append(mass[i][pobD])
print(diagonal)

# 6
summ = 0
for i in mass:
    for j in i:
        summ = summ + j
print(summ)

# 7

D = {}
elem = 0
povtor = 0
i1 = -1
j1 = 0
for i in mass:
    i1 = i1 + 1
    j1 = -1
    for j in i:
        j1 = j1 + 1
        elem = j
        povtor = 0
        for ii in mass:
            for jj in ii:
                if elem == jj:
                    povtor = povtor + 1
                    D[str(i1) + str(j1)] = povtor

print('Ключ:', max(D))
print('Значение:', D[max(D)])