ABCD加ABC等于DCDC求ABCD各是什么

问题描述:

ABCD加ABC等于DCDC求ABCD各是什么

ABCD = 1000A+100B+10C+D
+ ABC = 100A+10B+C
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DCDC = 1000D+100C+10D+C
A=B=C=D=0