sandglass by %20

char s[];b;l;main(x){for(b=l=strlen(gets(s));b--;)for(x=-1;x++<l;)putchar(x-l?x<l+~b|b<x&&x<b|l+~b<x&&x-1&&x-l+2?32:s[x]:10);}

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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