A paranoid friend has sent me a message, but in his paranoid mind he forgot to tell me how to decode it.
If Picasso got a computer he would know what to do!
What can I do now?

S43x13a34x13d12x13l10x15y37x15,31x16 15x11t20x16h20x15i34x10s40x15 28x16i22x10s27x11 37x16n43x16o20x12t35x11 12x12t36x14h17x15e34x12 42x10m35x13e34x15s37x14s42x14a15x12g16x10e41x10 37x11y12x14o31x15u15x13 40x11a28x10r42x16e12x16 25x15l15x16o17x10o20x13k10x13i15x10n16x13g34x14 25x11f15x14o36x15r20x11 37x12:42x13(20x14 25x14T17x14r21x16y21x10 20x10f22x16u34x16r25x10t37x10h12x11e10x10r43x10!43x15o12x15o40x13o12x10o43x14o15x15o26x14o26x12o41x16o26x13o25x16o40x10o36x13o31x14o17x11o27x15o34x11o17x13o37x13o31x12o31x10o10x12o10x14o31x11o35x12o40x12o10x16o10x11o25x12o11x13o17x16o40x16o25x13o17x12o40x14o31x13