local _N = "*n"
local a, b, c, d = io.read(_N,_N,_N,_N)
local temp = 0
while temp < b*d do
if a <= b then
if c <= d then
temp = a*c
print(a,c,temp)
if c == d then
a = a + 1
c = 1
else
c = c + 1
end
--print(a,c,temp)
end
end
end
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