#define s sin\x0d #define c cos\x0d double x;main(){for(;~scanf("%lf",&x);printf("%f\n",s(s(c(c(c(s(c(c(c(s(s(s(s(s(c(s(c(c(x))))))))))))))))))));}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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