K ZR(I t,C r){R u(r,o2(t,2,r,r,r));}K MV(I t,I r,K y){R O2(…
K ZR(I t,C r){R u(r,o2(t,2,r,r,r));}K MV(I t,I r,K y){R O2(t,0,r,u(r,c0()),y);}K Na(){S r=s;W(10u>*++s-'0'||'.'==*s);I f=0;N(s-r,f|='.'==r[i])R f?kf(fp(r,s-r)):ki(ip(r,s-r));}
K ZR(I t,C r){R u(r,o2(t,2,r,r,r));}K MV(I t,I r,K y){R O2(t,0,r,u(r,c0()),y);}K Na(){S r=s;W(10u>*++s-'0'||'.'==*s);I f=0;N(s-r,f|='.'==r[i])R f?kf(fp(r,s-r)):ki(ip(r,s-r));}