Octal <-> Hexadecimal

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To convert between octal and hexadecimal
use binary as an intermediate stage . There's nothing new to learn.
Zeros at the extreme left may be added or removed as necessary.

Example
Convert the octal number 50736₈ to hexadecimal.

50736₈ = 101 000 111 011 110₂

= 0101 0001 1101 1110₂ = 5₁₀1₁₀13₁₀14₁₀ = 51DE₁₆

Example
Convert the hexadecimal number 1DEA₁₆ to octal.

1DEA₁₆ = 1₁₀13₁₀14₁₀10₁₀ = 0001 1101 1110 1010₂

= 001 110 111 101 010₂ = 16752₈

50736₈	=	101 000 111 011 110₂
	=	0101 0001 1101 1110₂	=	5₁₀1₁₀13₁₀14₁₀	=	51DE₁₆

1DEA₁₆	=	1₁₀13₁₀14₁₀10₁₀	=	0001 1101 1110 1010₂
			=	001 110 111 101 010₂	=	16752₈