#define i 0
while : %while(%[i<10],%i %<i=%[i+1]>)
#define i 0
until : %until(%[i>=10],%i %<i=%[i+1]>)
#define i 0
dowhile : %dowhile(%i %<i=%[i+1]>,%[i<10])
#define i 0
dountil : %dountil(%i %<i=%[i+1]>,%[i>=10])
for : %for(i,0,9,%i%" ")
for : %for(i,9,0,%i%" ")
for : %for(i,0,20,2,%i%" ")
for : %for(i,20,0,-2,%i%" ")
