happy number by tanakh

i;main(j,m){for(;++i<2e3;j<2&&printf("%d\n",i))for(j=i;j>4;j=m)for(m=0;j;j/=10)m+=j%10*(j%10);}

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

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