Behind stairway door

000000000000000000000000000000000000000000000000 00000000000000000baab000000000000000000000000000 00000000000b0000babaab00000000000000000000000000 000000000040000bab3aaab00dd0ddd0dd00000000000000 000000000ab000a30003aaa000d0ddd0d000000000000000 000000000aa00a3000aaaaa00d00d0d0d000000000000000 0000000003aaaa0043aaaaac0dd0d0d0dd00000000000000 0000000003330cc033aaaaa0000000000000000000000000 000000000000c0ab3aaaab0c000003340000000000000000 000000000c0c333aaaaabac000003333ab00000000000000 0000000000c033aaaaaba000433baaa3ba344bab00000000 00000000000a3aaaaabc0c00aaaaaaaaab333abab0000000 0000000000aa3aaaa0c003aaaaaaaaaaaaaa3babab000000 000000000aaaaaac0c003aaaaaaaaaaaaaaaaaa334b00000 000000000aaaaac0c000aaaaaaaaaaaaaaaaaaaa33ab0000 000000000aaaaa0c000aaaaaaa0c0c0c0caaaaaaa3bab000 000000000a3aaac000abaaaac0c0c0c0c0c0aaaaaaaba000 00000000033aaa000baaaaac0c0c0c0c0c0c0aaaaaaaab00 00000000033aaa000abaaac0c0c000000000caaaaa34aab0 000000000a3aaa000baaaa0c0c000000000c0aaaaaa3aaa0 000000000aaaaa00aabaaac00000000000cabaaaaa343aa0 000000000aaaaaababaaaa00000000000cabaaaaaaa3aaaa 0000000000aaaaaabaaa30c000000000cababaaaaaaaaaaa 000000000c3aaaaaaaa30c0abba0000cabaaaaaaaaaaaaaa 000000000033aaaaaaa0c00baaba00cabaaaaaaaaaa33aaa 000000000c0c0aaa330c00aaaaabacabaaaaaaaaaaa33aaa 0000000000c0c03330c00aaaaaaaaaaaaaaaaaaaaaa33aaa 00000000000c0c033c00aaaaaaaaaaaaaaaaaaaaaaaaaaaa 00000000000000c0c00aaaaa0caaaaaaaaaaaaaaaaaaaaaa 0000000000000000066aaaaac0caaaaaaaaaaaaaaa3aaaaa 0000000000000000060caaaa0c0aaaaaaaaaaaaaa33aaaaa 000000000000000000c66caac0aaaaaaaaaaaaaaa33aaaaa 00000........................................... 000000.......................................... 000000.......................................... 0000.0.......................................... .0...0.......................................... ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ back back