print("")
print(round(5.6789, 2))

print(round(3.14159, 1))

print(round(4.7))
print(round(2.3))

print(round(-2.456. 1)

print("")
import math
print(math. floor(6.8))
print(math. floor(3.1))

            print("")
            import math
            print(math. ceil(6.2))
            print(math. ceil(3.01))

            print("")
            import math

            print(math. trunc(8.9))
            print(math. trunc(5.2))
            print(math. trunc(-3.7))

            prin("")
            import math

            print(math. trunc(6.7))