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a=k.digits;n=(u==t?u+2:u+1)-t;for(o=0;o<n;o++){a[o]=a[o+t]}k.len=o;return bigint_norm(k)
}function bigint_div(a,b){a=bigint_from_any(a);b=bigint_from_any(b);return bigint_divmod(a,b,0)
}function bigint_mod(a,b){a=bigint_from_any(a);b=bigint_from_any(b);return bigint_divmod(a,b,1)
}function bigint_cmp(a,c){var b;if(a==c){return 0}a=bigint_from_any(a);c=bigint_from_any(c);
b=a.len;if(a.sign!=c.sign){if(a.sign){return 1}return -1}if(b<c.len){return(a.sign)?-1:1
}if(b>c.len){return(a.sign)?1:-1}while(b--&&(a.digits[b]==c.digits[b])){}if(-1==b){return 0
}return(a.digits[b]>c.digits[b])?(a.sign?1:-1):(a.sign?-1:1)}function bigint_number(a){var e=0;
var b=a.len;var c=a.digits;while(b--){e=c[b]+65536*e}if(!a.sign){e=-e}return e};