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#odd
awk '{
for(i=1; i<=20; i+=2){ \
N=(i-1)/2+1 ; \
V[N]=5 ; \
print ("P[" N "] = " V[N]) }
}'
#even
awk '{
for(i=2; i<=20; i+=2){ \
N=i/2 ; \
V[N]=5 ; \
print ("P[" N "] = " V[N]) }
}'
P[1] = 5
P[2] = 5
P[3] = 5
P[4] = 5
P[5] = 5
P[6] = 5
P[7] = 5
P[8] = 5
P[9] = 5
P[10] = 5