03 布伦特远期曲线，经验老手的真金白银定价而最值得油气多头清醒的，则是这张布伦特远期曲线的图：
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fn collatz_steps(n: int) - int {
Compiles itself (2 points)
The Netflix show is a live-action adaptation of the incredibly popular manga (comic) created by Japanese artist Eiichiro Oda, which has reportedly sold 600 million volumes worldwide since it launched in 1997.