As character names:

U+21FB RIGHTWARDS ARROW WITH DOUBLE VERTICAL STROKE character (⇻)

As raw characters:

⇻

As a string of HTML entities:

⇻

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 135, hex 0x87, octal \207, binary 10000111
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 187, hex 0xBB, octal \273, binary 10111011
This is continuation byte 2, expecting 0 more.

U+21FB	RIGHTWARDS ARROW WITH DOUBLE VERTICAL STROKE
	= z notation finite function