Picture of evolutions of two flux tubes with various braid patterns. Top row: flux tubes braiding with various patterns. Bottom row: their final states after occurrences of magnetic reconnection at their crossings. Panel a: two coherent flux tubes braid with each other in a well-combed pattern. Panels b,c: two flux tubes braid with their legs separating from each other randomly. The two flux tubes in panels a and b initially had an identical flux, while the two tubes in panels c have a nonidentical flux and cyan-coloured tubes have more axial flux than that coloured magenta. The pairs of flux tubes in panels a,b initially braid with one crossing and the two tubes in panel c braid with two crossings.