>++++[-<+++++++++++>]>,[>++++++[-<-------->]>+++++++++[-<<<[->+>+<<]>>[-<<+
>>]>]<<[-<+>],]<<+++++.-----.+++++.----->-->+>+<<[-<.>>>[->+>+<<]<[->>>+<<<
]>>[-<<+>>]>[->+<<<+>>]>[>>>>++++++++++<<<<[->+>>+>-[<-]<[->>+<<<<[->>>+<<<
]>]<<]>+[-<+>]>>>[-]>[-<<<<+>>>>]<<<<]<[>++++++[<++++++++>-]<-.[-]<]<<<<]
; https://www.codingame.com/playgrounds/50478/brainfuck-part-5---math-sequences/fibonacci-sequence