46 | - | (16 | + | 18) | = | 78 | + | (91 | - | 78) | = | 20 | + | (45 | - | 13) | = | ||
83 | - | (13 | + | 63) | = | 21 | + | (36 | - | 27) | = | 22 | + | (18 | - | 14) | = | ||
77 | - | (14 | + | 48) | = | 93 | + | (47 | - | 44) | = | 38 | + | (38 | - | 33) | = | ||
24 | - | (10 | + | 11) | = | 89 | + | (44 | - | 39) | = | 41 | + | (97 | - | 45) | = | ||
100 | - | (52 | + | 41) | = | 69 | + | (32 | - | 20) | = | 21 | + | (56 | - | 50) | = | ||
47 | - | (17 | + |
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