!function(){function r(t,n,o,e){if(o===n.length-1)return e(t);var f,u=n[o],c=Array(u);for(f=u-1;f>=0;--f)c[f]=r(t[f],n,o+1,e);return c}function t(r){for(var t=[];"object"==typeof r;)t.push(r.length),r=r[0];return t}function n(r){var n,o;return"object"==typeof r?(n=r[0],"object"==typeof n?(o=n[0],"object"==typeof o?t(r):[r.length,n.length]):[r.length]):[]}function o(r){var t,n=r.length,o=Array(n);for(t=n-1;-1!==t;--t)o[t]=r[t];return o}function e(t){return"object"!=typeof t?t:r(t,n(t),0,o)}function f(r,t){t=t||!1;var n,o,f,u,a,h,i,l,g,v=r.length,y=v-1,b=new Array(v);for(t||(r=e(r)),f=0;v>f;++f){for(i=f,h=r[f],g=c(h[f]),o=f+1;v>o;++o)u=c(r[o][f]),u>g&&(g=u,i=o);for(b[f]=i,i!=f&&(r[f]=r[i],r[i]=h,h=r[f]),a=h[f],n=f+1;v>n;++n)r[n][f]/=a;for(n=f+1;v>n;++n){for(l=r[n],o=f+1;y>o;++o)l[o]-=l[f]*h[o],++o,l[o]-=l[f]*h[o];o===y&&(l[o]-=l[f]*h[o])}}return{LU:r,P:b}}function u(r,t){var n,o,f,u,c,a=r.LU,h=a.length,i=e(t),l=r.P;for(n=h-1;-1!==n;--n)i[n]=t[n];for(n=0;h>n;++n)for(f=l[n],l[n]!==n&&(c=i[n],i[n]=i[f],i[f]=c),u=a[n],o=0;n>o;++o)i[n]-=i[o]*u[o];for(n=h-1;n>=0;--n){for(u=a[n],o=n+1;h>o;++o)i[n]-=i[o]*u[o];i[n]/=u[n]}return i}var c=Math.abs;solve=function(r,t,n){return u(f(r,n),t)}}();