------Input------
3 1 1 -z-l-k-d-h-f-q-w-y-e-r-o-i-q-u-y-e-s-a-k-j-d-h-f-l-a-k-s-d-h-f-i-q-u-i-y-r-q-l-w-e-h-k-z-x-h-d-f-l-k
------Answer-----
-z-l-k-d***h-f**********q*****w*y-e************r-o-i*******q***u***y-e*************s-a*********k-j-d***h-f*****l-a*********k*******s-d***h-f**i*******q***u-i***************y-r-q-l**********w-e**h**k**************z-x-h-d*f*****l-k
------Your output-----
-z-l-k-dh-fqwy-er-o-iquy-es-ak-j-dh-fl-aks-dh-fiqu-iy-r-q-lw-ehkz-x-h-dfl-k