f(x)=
{
if(x==1,print(1));
if(x==1,print(1)
,print("default"));
if(x==1,print(1)
,x==2,print(2));
if(x==1,print(1)
,x==2,print(2)
,print("default"));
if(x==1,print(1)
,x==2,print(2)
,x==3,print(3));
if(x==1,print(1)
,x==2,print(2)
,x==3,print(3)
,print("default"));
}
for(i=1,4,f(i));
g(x)=if(x,return(1),return(2),return(3));
g(1)
g(0)