Exodus 27:13-15

Young's Literal Translation

¹³ And [for] the breadth of the court at the east side, eastward, [are] fifty cubits.

¹⁴ And the hangings at the side [are] fifteen cubits, their pillars three, and their sockets three.

¹⁵ And at the second side [are] hangings fifteen [cubits], their pillars three, and their sockets three.