11 lines
209 B
D
11 lines
209 B
D
import std.stdio, std.conv, std.string;
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void main() {
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string[] r;
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try
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r = readln().split();
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catch (StdioException e)
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r = ["10", "20"];
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writeln(to!int(r[0]) + to!int(r[1]));
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}
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