RNA Polymerase VII

This program has been disqualified.

Source code:

#RNA Polymerase
#This enzyme helps with RNA replication, so that the two resultant strands
#are RNA_strand1 and RNA_strand2 respectively.
import random
if not input:
	RNA_strand1=""
	RNA_strand2=""
	RNA_strand3=""
	output = random.choice(['R','P','S'])
	ribonuclease = {'RP':'l','PS':'o','SR':'r','PR':'e','SP':'m','RS':'i','RR':'p','PP':'s','SS':'u'}
	nucleotides = ['R','R','R','R','R','R','R']
	nucleic_acid = [0,0,0,0,0,0,0]
else:
	for i in range(7):
		if nucleotides[i] == {'R':'P', 'P':'S', 'S':'R'}[input]:
			#win? add one nucleic acid!
			nucleic_acid[i]+=1
		elif input == {'R':'P', 'P':'S', 'S':'R'}[nucleotides[i]]:
			#if you lose, you suck so you get reset to zero.
			nucleic_acid[i] = 0
	m = max(nucleic_acid)
	bestlist = [i for i, c in enumerate(nucleic_acid) if c == m] 
	index = random.choice(bestlist)
	j=100
	RNA_strand1+=input
	RNA_strand2+=ribonuclease[input+output]
	RNA_strand3+=output
	length = len(RNA_strand2)
	i = RNA_strand2.rfind(RNA_strand2[length-j:length-1],0,length-2)
	while not RNA_strand2[length-j:length-1] in RNA_strand2[0:length-2]:
		j-=1
		i = RNA_strand2.rfind(RNA_strand2[length-j:length-1],0,length-2)
		if j<2:
			break
	if i==-1 or j+i>=length:
		nucleotides[0] = nucleotides[3] = random.choice(['R','P','S'])
	else:
		nucleotides[0] = {'R':'P', 'P':'S', 'S':'R'}[RNA_strand1[j+i]] #I will beat what you would play if you follow the same pattern
		nucleotides[3] = {'R':'S', 'P':'R', 'S':'P'}[RNA_strand3[j+i]] #I will beat what you would play if you try to beat what I play
	nucleotides[6] = random.choice(['R','P','S'])	
	for i in [1,2,4,5]:
		nucleotides[i] = {'R':'S', 'P':'R', 'S':'P'}[nucleotides[i-1]] #I will beat you if you try to second guess me.
	output = nucleotides[index]