#include<stdio.h>\x0d \x0d int main()\x0d {\x0d \x09int i,j,k,l;\x09\x0d \x09for(i=1;i<=9;i++)\x0d \x09{for(j=9-i;j>0;j--){\x0d \x09\x09\x09printf(" ");}for(k=1;k<=i;k++){printf("%d",k);\x09}for(l=i-1;l>0;l--){printf("%d",l);}printf("\n");}\x09\x0d return 0;\x09\x0d }\x0d
Note that non-ascii characters in the above source code will be escaped (such as \x9f).