j,c,s[99][99];main(i){for(;++c<=i;)for(i=0;--j!=9;){j=32;if(++i>=c)scanf("%d%c",&s[c][i],&j);printf("%d%c",s[(i<c)?i:c][(i<c)?c:i],j);}}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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