Modular Inverse by rotary-o

m;main(b,a,y,x){main(a,x?b%a:m,x=a?x-b/a*y:!scanf("%d%d",&a,&m),a?y:!m||printf("%.d\n",(x+m)%m));}

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

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