1wyckoffs: 2- "a" 3- "a" 4- "a" 5- "a" 6- "a" 7- "a" 8- "a" 9- "a" 10- "b" 11- "b" 12- "b" 13- "b" 14- "b" 15- "b" 16- "b" 17- "b" 18- "b" 19- "b" 20- "b" 21- "b" 22- "b" 23- "b" 24- "b" 25- "b" 26- "b" 27- "b" 28- "b" 29- "b" 30- "b" 31- "b" 32- "b" 33- "b" 34- "b" 35- "b" 36- "b" 37- "b" 38- "b" 39- "b" 40- "b" 41- "b" 42- "b" 43- "b" 44- "b" 45- "b" 46- "b" 47- "b" 48- "b" 49- "b" 50- "b" 51- "b" 52- "b" 53- "b" 54- "b" 55- "b" 56- "b" 57- "b" 58