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?

S42x10a34x16d17x12l12x10y34x10,17x10 10x16t12x14h40x12i40x10s15x16 12x13i17x14s37x16 25x14n31x13o17x11t31x16 20x11t40x14h12x12e26x13 20x14m31x11e40x13s40x15s10x10a35x11g20x12e21x16 37x10y10x12o10x14u27x11 11x13a34x13r43x10e20x15 43x14l15x13o20x16o26x12k17x16i41x10n35x13g12x15 34x12f35x12o15x11r16x13 15x12:10x13(37x12 43x15T37x15r42x14y17x13 40x11f42x13u36x14r17x15t12x11h22x16e10x15r43x13!12x16o20x13o20x10o16x10o10x11o31x10o25x11o15x10o36x15o25x13o25x16o41x16o28x10o37x11o31x14o28x16o21x10o15x15o43x16o31x12o34x15o31x15o25x10o37x13o37x14o25x12o42x16o22x10o40x16o27x15o15x14o25x15o34x11o36x13o26x14o34x14