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甲和乙的成绩之和是195分,乙和丙的成绩之和198分。甲和丙的成绩之和是193分。问:甲、乙、丙各是多少分?
The sum of the scores of A and B is 195 points and the sum of B and C scores of 198 points. The sum of the scores of A and C is 193 points. Q: A, B, C each is how many points?