R=input('Please input R=');
*ls6k`ymL p=0.1;
Cb? !+U n=chaxun(R);
R%\3[ L=15;
&oB*gGRw=7 c=3*10^8;
U]vUa^nG h=6.626196*10^(-34);
?QJx!'Y,p k=1.3806505*10^(-23);
jdu6P+_8n B=198.95;
f'(F'TE r=0.509*10^(-60);
qK#"uU8B d=532*10^(-9);
z _\L@b for s=0:20
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