已知 \(\overline{ABCD}\times D =\overline{DCB1}\) ，其中相同的字母代表相同的数字，不同的字母代表不同的数字，那么 \(\overline{ABCD}+\overline{DCBA}\)等于几？
流程图
graph TD;
A(D乘D个位为1)-->B(D=9);
B--D乘A=9-->C(A=1);
C--B乘D不能有进位-->D(B=0);
B--乘C加8-->E(个位=B)
E--乘B加前一步的进位数-->F(得数为C);
D-->G(C=8);
F-->G;
G-->H(1089X9=9801);
H-->I(10890);
时序图
sequenceDiagram
participant Alice
participant Bob
Alice->John: Hello John,how are you?
loop Healthcheck
John->John: Fight against hypochondria
end
Note right of John: Rational thoughts
prevail... John-->Alice: Great! John->Bob: How about you? Bob-->John: Jolly good!
prevail... John-->Alice: Great! John->Bob: How about you? Bob-->John: Jolly good!
甘特图
gantt
dateFormat YYYY-MM-DD
title Adding GANTT diagram functionality to mermaid
section A section
Completed task :done, des1, 2014-01-06,2014-01-08
Active task :active, des2, 2014-01-09, 3d
Future task : des3, after des2, 5d
Future task2 : des4, after des3, 5d
section Critical tasks
Completed task in the critical line :crit, done, 2014-01-06,24h
Implement parser and jison :crit, done, after des1, 2d
Create tests for parser :crit, active, 3d
Future task in critical line :crit, 5d
Create tests for renderer :2d
Add to mermaid :1d
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