1wyckoffs: 2- "a" 3- "b" 4- "b" 5- "a" 6- "b" 7- "b" 8- "b" 9- "b" 10- "b" 11- "b" 12- "b" 13- "b" 14- "b" 15- "b" 16- "a" 17- "a" 18- "a" 19- "b" 20- "b" 21- "a" 22- "b" 23- "b" 24- "a" 25- "b" 26- "b" 27- "a" 28- "b" 29- "b" 30- "b" 31- "b" 32- "b" 33- "b" 34- "c" 35- "c" 36- "c" 37- "c" 38- "c" 39- "c" 40- "c" 41- "c" 42- "c" 43- "c" 44- "c" 45- "c" 46- "c" 47- "c" 48- "c" 49- "c" 50- "c" 51- "c" 52- "c" 53- "c" 54- "c" 55- "c" 56- "c" 57- "c" 58- "c" 59- "c" 60- "c" 61- "c" 62- "c" 63- "c" 64- "c" 65- "c" 66- "c" 67- "c" 68- "c" 69- "c" 70- "c" 71- "c" 72- "c" 73- "c" 74- "c" 75- "c" 76- "c" 77- "c" 78- "c" 79- "c" 80- "c" 81- "c" 82