1.
Ddtd dtls fm smr Ddtds ddddrmm smr
mml……………………………ml………………….ms……………..mr
mml……………………………ml………………….ms……………..mr
slsrm…………..
slsrm………………………mssml sml smlsfmr
slsrm………………………..mssmdd
smdd fmrr drdrl
l…………………..sml……………..smls fmr
ddsls
l…………………sml…….smls………….fmr
drdrl………………………