S k2s

S k2sS k2sS k2sS k2s
S k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2s
S k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2s
S k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2s
S k2sS k2sS k2sS k2sS k2sS k2sS k2sS k2s