---

import random
n=3
m=4
a=[[random.randint(1,9) for j in range(m)] for i in range(n)]
for i in range(n):
    print(a[i])
print(a[0][m-1])
print(a[n-1][0])




import random
n=3
m=4
a=[[random.randint(1,9) for j in range(m)] for i in range(n)]
for i in range(n):
    print(a[i])
print(a[n-1][m-1])
print(a[0][0])





import random
n=4
m=5
a=[[random.randint(1,9) for j in range(m)] for i in range(n)]
for i in range(n):
    print(a[i])
print(a[1][2])
print(a[2][3])








import random
n=4
m=5
a=[[random.randint(1,9) for j in range(m)] for i in range(n)]
for i in range(n):
    print(a[i])
print(a[2][1])
print(a[1][3])