function A_ef(a){if(-1!=a.b.u[0]||-1!=a.b.u[1])return!0;var b=A_if(a);if(null==b)return!1;var c=A_1(a,b),c=c[c.length-1].startIndex,d;if(-1!=b)return d=c.slice,A_ti(a,b,d)?!0:!1;for(var e=0,b=0;2>b;++b){d=c[a.b.$z[b]];d=A_ti(a,b,d);if(0==d)return a.b.Bk[0]=.5,!1;null==d&&e++}return 2>e}function A_ti(a,b,c){var d=A_5h(a,b,1,c);if(null==d||null==d.size)return!1;c=d.position;d=d.size;if(0>=c)return 0>=c+d?!1:null;d=a.b.Hd[b][1][a.b.$r[b]];if(c>=d)return!1;a.b.Bk[b]=c/d;return!0};