Cartan #0:
split: 0; compact: 8; complex: 0
canonical twisted involution: e
twisted involution orbit size: 1; fiber size: 256; strong inv: 256
imaginary root system: C8
real root system is empty
complex factor is empty
real form #5: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,
    25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,
    50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,
    75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,
    100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,
    119,120,121,122,123,124,125,126,127] (128)
real form #4: [128,130,133,136,138,141,145,148,150,155,160,162,165,168,170,173,
    177,180,182,187,193,196,198,203,208,210,213,216,218,221,227,233,236,238,
    247] (35)
real form #3: [129,131,132,134,137,139,140,142,144,146,149,151,152,154,157,161,
    163,164,166,169,171,172,174,176,178,181,183,184,186,189,192,194,197,199,200,
    202,205,209,211,212,214,217,219,220,222,224,226,229,232,234,237,239,241,244,
    246,251] (56)
real form #2: [135,143,147,153,156,158,167,175,179,185,188,190,195,201,204,206,
    215,223,225,228,230,235,240,242,245,248,250,253] (28)
real form #1: [159,191,207,231,243,249,252,254] (8)
real form #0: [255] (1)


Cartan #1:
split: 0; compact: 6; complex: 1
canonical twisted involution: 2,3,4,5,6,7,8,7,6,5,4,3,2,1,2,3,4,5,6,7,8,7,6,5,4,
    3,2
twisted involution orbit size: 56; fiber size: 64; strong inv: 3584
imaginary root system: A1.C6
real root system: A1
complex factor is empty
real form #5: [0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,
    46,48,50,52,54,56,58,60,62] (32)
real form #4: [1,5,11,17,21,27,35,41,45,55] (10)
real form #3: [3,7,9,13,19,23,25,29,33,37,43,47,49,53,59] (15)
real form #2: [15,31,39,51,57,61] (6)
real form #1: [63] (1)